litv-exp@lxg___: E121_unpacker /path/to/file.lmd --ntuple=RAW,/path/to/new_file.root

Many thanks to Sergey and Nikos we have tested the connection of the new control system for turning on and off of the gas target.

Connections:

For the test event machines 12 (event 162) and 14 (event 163) were chosen for gas target on and off. The old Pulzzentrale code remains unchanged on 10. The middle output of the TIF editors can then be connected to the gas target control.

The created pulses were measured on the oscilloscope and hat the duration of 1us and amplitude of 5V.

The gas target control then produces the required long pulse which comes out as a BNC connection. If in the local mode, gas target can controlled by out-on and out-off. For the above scenario, we need the event mode.

The output of the gas target control is connected to the ESR-Messhuette-Panel number 2, which goes back to Messhuete and form there to the top of ESR.


All connections are working properly until the gas target itself.

Software:

Different subchains can be activated and deactivated on demand. Also their duration can be changed on the fly, but currently a change in other settings (such as Quadrupoles) might reset the duration values to their default.

e127: https://docs.google.com/spreadsheets/d/14m8WcCq1erx6HqWJRK7TLbCx121IkjqGa5l-frf4YjI/edit#gid=0

e121: https://docs.google.com/spreadsheets/d/10MUzA5-Ilf2WzCyNj8u_KSG6yzPg0e4vtZGGPFB3K-k/edit#gid=0

1. slow control:
1.1. program file:
litv-exp@ringpi:~/epics/mrcc_ioc/db $ 
1.2 user interface:
litv-exp@lxg1298:~/E121/scripts/GUIe121_new

2. mbs:
2.1 user interface
litv-exp@lxg1298:~/E121/scripts$ ./e121_gui.py
2.2 source 
R4L-47 litv-exp > pwd                                                                                                                                                                                                                        
/esr/usr/litv-exp/2020_e121/                                                                                                                                                                                             
3. go4:
litv-exp@lxg1298:~/2019Munich-Det/Go4-Muenchen-3V785AH-1V830-simple$ go4
4. experimenal data:
litv-exp@lxg1298:/data.local1/E121

How to change scaling factor?
The parameters is in f_user.c file:
1. open the f_user.C with emacs :
R4L-47 litv-exp > emacs -nw f_user.c
2. change the parameters "MWPC_downscale". 
#define MWPC_downscale 0    // reduction = 2**MWPC_downscale                  
3.compile the program.
4. restart mbs.                                                                                                                                                               

1) From SIS, 206Pb67+ @401.17 MeV/u goes to FRS where only SEETRAM is placed in the target area to strip off 206Pb67+ to get 206Pb81+.
2) There is 206Pb81+ (H-like primary beam) inside ESR at 400 MeV/u.
3) The ESR team is now trying Stochastic cooling with 206Pb81+ beam at 400 MeV/u.

1) ESR team is successful with the Stochstic cooling of primary H-like 206Pb81+ beam @400 MeV/u.
2) Now, they are trying for stacking of the beam.

Yuri and Helmut have been extensively involved in tuning and optimizing of the FRS.

26th March, 2020 (Evening setting):
1) 206Pb67+ beam from SIS @401.17 MeV/u.
2) SEETRAM in target area of FRS is used for stripping the beam from SIS to get 206Pb81+ and is then transported to ESR @400 MeV/u. (SEETRAM consists of three Ti foils of ~10 um thickness which are used for stripping purpose (more info: https://www-win.gsi.de/frs-setup/ ))
3) SL1 slits are opened +-10 mm to get rid of other charge states of 206Pb and only transport 206Pb81+ through FRS.

27th March, 2020 (Evening setting):
1) Different target (Be 1-6 g/cm2 with Nb backing) and degrader (Al)thicknesses are used for the optimization of 206Pb81+ with matter in FRS to get the beam with @400 MeV/u in ESR.
2) 206Pb67+ beam from SIS @540-560 MeV/u.

The attachment contains information on how to start and shutdown NTCap and bridge computer.

By changing the tune to Qx=2.33, Qy=2.36 the momentum acceptance was significantly improved. A variation of the cooler voltage of 10300 V was possible without beam loss. That corresponds to a momentum acceptance of 2.7 %. That should provide good conditions for longitudinal stacking.

Thanks to the ESR team !

Thanks to Sergey and Markus, stacking of primary H-like 206Pb81+ beam in ESR is achieved.

The stacking of the primary beam was established. There is continuous cooling on the injection orbit by stochastic cooling and by electron cooling on the stack orbit. (Time controlled operation of stochastic cooling could not be achieved due to controls issues). After stchastic cooling on the injection orbit the rf system decelerates the beam by 1.5 % in momentum and at the lower momentum electron cooling keeps the beam. The DC trafo shows accumulation of 10 injections of primary low intensity Pb81+ beam. Losses during the accumulation seems to be small.

Thanks to Nikos, stable H2 gas jet target with 10^14 particles/cm^3 is ready.
(More information can be found on: https://ulpc24.gsi.de/cgi-bin/jet.py?gasart=Helium )

We plan to measure:

1. Lifetime of H-like 206Pb81+ beam with two electron cooler currents:
a) 200 mA
b) 10 mA (so that recombination rate is less)
using MWPC (capture detector in outer pocket) and CsISiPHOS (loss detector in inner pocket). 

2. To find the efficiency of the MWPC.

Cross-section for capture and ionisation of 206Pb81+ with H2 gas jet target are calculated using GLOBAL code.
The ionisation (on CsISiPHOS) and capture (on MWPC) trigger rates are calculated for 206Pb81+ beam with 10^6 particles revolving in ESR ~2 MHz frequency with H2 gas jet target density ~ 10^14 particles/cm3.

XY co-relation of DSSSD showing 206Pb82+ beam hitting the CsISiPHOS detector present in the inner pocket of ESR after the first dipole after the gas jet. 206Pb82+ is 
produced by ionisation of 
206Pb81+ due to interaction of beam with the gas jet.

Alex and Pierre-Michel applied 1500 V to the anode and adjusted the threshold in Messhute.
x1 signal was small & noisy and rest of the signals were fine.

10:51 am the CsISiPHOS is moved to 65 mm from 60 mm.The spot on the DSSSD is changed by 5 mm which confirms the hit of the beam.

11:05 
Detector is moved back to 60 mm.

The gas jet target is now being changed from H2 to Ar by Nikos.

Yuri reduces beam intensity in the ESR to reduce the countrate on the detectors.

ESR is open now

Since last night, the signals from the p-side of all the Si pads were seen as negative on picoscope.
The signals from DSSSD, all n-sides of Si pads and CsI were positive which all are in MSCF-5.
Thus, I and RuiJiu, changed the polarity jumpers of MSCF 1,2,3 and 4(all the four jumpers inside the mentioned MSCF) and now hope to see positive signals from the p-side of all the Si pads.

From Yury,

For now, measure the beam life time with 3 different electron current in the e-cooler,i.e. 200mA(default), 10mA, and 20mA. For each current, 4 sets of 30mins long measurements shall be taken.

Starting from 9pm Helmut and Sergey will come for setting up FRS

beam: 
energy: 
storage time:

purpose: data with TARGET ON

Detector position (CsISiPHOS):  mm
Detector position (MWPC):       mm

run start at xx:xx , first file: run0xxx.lmd
run stop  at xx:xx , last file:  run0xxx.lmd

_______________________________________________________________________________

time: 

I_cooler =  mA



HV1
CH1 voltage:           60V  
CH1 leakage current:   uA

CH2 voltage:           60V  
CH2 leakage current:   uA

CH3 voltage:           60V  
CH3 leakage current:   uA

CH4 voltage:           60V  
CH4 leakage current:   uA

HV2
CH1 voltage:           60V  
CH1 leakage current:   uA

CH2 voltage:           60V  
CH2 leakage current:   uA

CH3 voltage:           -50V  
CH3 leakage current:   uA

CH4 voltage:           -160V  
CH4 leakage current:   uA


SIS particles before:           
ESR particles after stacking:     
Number of stackings:
Target ON density:   
Target on time for measurement:           


NTCAp file:
IQ_2020-03-27_21-02-31/0000xxx.iq.tdms
SC_2020-03-27_21-02-31/0000xxx.iq.tdms

copy and repeat the above (below the line) every 30 minutes

Attached are the instructions on how to change the electron cooler current for the lifetime measurements of 206Pb81+ beam (interaction with residual gas and electron cooler).

store 206Pb81+ beam inside ESR and measure its halflife. 
The HV of detector is off.
Start DAQ to record the ESR current in lmd file.
Nik is optimizing the gas jet target. So this file is still test run.

We see two species in the Schottky spectra during the beam lifetime measurement without the target. The one (probably the primiary beam) is significantly better cooled than the other.
So, we were wondering what is the other beam? Maybe the recombined ones?

Ragan and Ruijiu went in the ESR for short time to fix something with the slow control of the silicon detector.
After this, there is no beam in the ESR.

The HKR crew informs us that several machines in ESR are showing malfunctions.
The on-call expert cannot be reached.

Update (16:36): On-call service has been informed.

Update (16:48): ESR cycle stopped.

Yuri and Sergey (on phone) have investigated extensively the problem with having no beam in the ESR. The FRS has been checked and seems OK. The ESR is fine as well.
The problem seems to be the timing. Ths SIS and the ESR seem to be completely out of synchronization. The on-call service for the control system has been called. 

go4 crush up. 
the problem is 
due to  mbs. 
restart mbs. 
see an error. 
restart again. 
the mbs and go4 
are working 
working. 

        MHV1     MHV2
ch1:1st Sipad  4th 
Sipad
ch2:2nd Sipad  6th 
Sipad
ch3:3rd Sipad  DSSD
ch4:4th Sipad  CsI

Sergey and Yuri are tuning Tl beam. The particle number in ers is about 1e4. I(SIS)=5e8
run stop: after few minutes (garbage data)

Sergey and Yuri are tuning Tl beam. The particle number in ers is about 1e4. I(SIS)=5e8

some events on MWPC can be seen !

As we (RuiJiu and me) changed the jumpers of MSCF 1, 2,3 and 4 yesterday, now we see nice positive signals on picoscope.
Yuri and Sergey are still working on optimising the Tl fragments !

The Tl fragments are being stacked (almost ~20 staacks) and tried to store nicely in ESR.
The plan is to see the number of contaminants on the inner detector (CsISiPHOS) after the gas jet is on (Ar gas jet) and minimise this number for different FRS settings !!

P.S. Prayers have magical powers :) :) 

IQ_2020-03-29_13-05-
56
SC_2020-03-29_13-05-
56

move the detector 1cm 
outside.from 60mm to 
70mm.
left direction is 
outside. right direction 
is 
inside(close to beam).
the spot is moving from 
left to right.

s6 positon at 50mm.

slit	Ratio	error
-1	18.64	0.4
-2	18.18	0.38
-3	20.85	0.5
-4	18.15	0.34
-5	17.44	0.31
-6	17.38	0.32
-7	17.82	0.32
-8	16.41	0.27
-9	18.51	0.37

Here are some frequencies for identification of the fragments.

Center freq: 243.352675
span: 2 MHz

from left to right:

242.480175
242.645175
242.807675
242.855175
242.972675
243.247675
243.260175
243.300175
243.330175
243.342675
243.352675 --> largest peak possibly 205-Tl-81+ (not 100% sure)
243.415175
243.450175
243.555175
243.627675
243.752675
243.790175
243.807675
243.955175
244.117675
244.282675

beam: 
energy: 

purpose: data with electron cooler current xx mA

Detector position (CsISiPHOS):  mm
Detector position (MWPC):       mm

run start at xx:xx , first file: run0xxx.lmd
run stop  at xx:xx , last file:  run0xxx.lmd

_______________________________________________________________________________

time: 

I_cooler =  mA



HV1
CH1 voltage:           V  
CH1 leakage current:   uA

CH2 voltage:           V  
CH2 leakage current:   uA

CH3 voltage:           V  
CH3 leakage current:   uA

CH4 voltage:           V  
CH4 leakage current:   uA

HV2
CH1 voltage:           V  
CH1 leakage current:   uA

CH2 voltage:           V  
CH2 leakage current:   uA

CH3 voltage:           V  
CH3 leakage current:   uA

CH4 voltage:           V  
CH4 leakage current:   uA


SIS particles before:           
ESR particles at injection:     
ESR particles after stacking:     
Target ON density:              


NTCAp file:
IQ_2020-03-27_21-02-31/0000xxx.iq.tdms
SC_2020-03-27_21-02-31/0000xxx.iq.tdms

copy and repeat the above (below the line) every 30 minutes

decay line of 205Tl beam with Ar gas jet target on and S6 slit at -8mm
Ar gas density~1e12 atoms/cm2

beam: 206Pb81+
energy: 400 MeV/u

purpose: data with primary beam for detector efficiency and cross-section calculations

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 21:25 , run file: run0250.lmd
run stop  at 21:31 , close file:  run0250.lmd

_______________________________________________________________________________

time: 21:25

I_cooler = 177 mA

SIS particles before:  2E8        
ESR particles when gas jet is on:  3.6E6
Target ON density:  4.34E12        


NTCAp file:
SC_2020-03-29_21-27-57
IQ_2020-03-29_21-27-57

copy and repeat the above (below the line) every 30 minutes

Ionization cross section = 1320 barn.
Capture cross section = 557+137+44.5=735.5.
sigma_Ion/sigma_cap=1.79

Alex goes to Messhute to check the signals from MPWC. After he completes, we start with the measurements with the primary beam )

This is a collection of energy spectra of the CsISiPhos detectors from run0251 with primary beam.

There is no good spectra for n-side of Si-pad 1!

beam: 206Pb81+
energy: 400 MeV/u

purpose: data with primary beam for detector efficiency and cross-section calculations

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 00:28 , run file: run0252.lmd
run stop  at xx:xx , close file:  run0.lmd

_______________________________________________________________________________

time: 00:28

I_cooler = 176 mA

SIS particles before:  3E8        
ESR particles when gas jet is on:  2.4E6
Target ON density:  4.45E12        
Target on time : 5 minutes

NTCAp file:
SC_2020-03-30_00_28_45
IQ_2020-03-30_00_28_45
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

beam: 206Pb81+
energy: 400 MeV/u

purpose: data with primary beam for detector efficiency and cross-section calculations

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 00:28 , run file: run0252.lmd
file currently running: run0257.lmd

_______________________________________________________________________________

time: 01:00

I_cooler = 176 mA

SIS particles before:  3.3E8        
ESR particles when gas jet is on:  2.4E6
Target ON density:  4.49E12        
Target on time : 5 minutes

NTCAp file:
SC_2020-03-30_00_28_45 (run ongoing)
IQ_2020-03-30_00_28_45 (run ongoing)
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

There is problem with SIS
Run stop: 0257.lmd (at1:06)

01:17 Problem with SIS is solved
01:19 run start 0258.lmd


beam: 206Pb81+
energy: 400 MeV/u

purpose: data with primary beam for detector efficiency and cross-section calculations

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 01:19 , run file: run0258.lmd
file currently running: 

_______________________________________________________________________________

time: 01:19

I_cooler = 176 mA

SIS particles before:  1.5E8        
ESR particles when gas jet is on:  2.8E6
Target ON density:  4.49E12        
Target on time : 5 minutes

NTCAp file:
SC_2020-03-30_01-18-31
IQ_2020-03-30_00_22-52
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

The following shows the pattern for first measurement in ESR (gas jet is on for = 60*5 secs = 300 secs as it can be seen on step SC7 in pattern).
One injection cycle runs for ~ 6 mins.

beam: 206Pb81+
energy: 400 MeV/u

purpose: data with primary beam for detector efficiency and cross-section calculations

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 01:19 , run file: run0258.lmd
run stop at 02:05: stop file: 0265.lmd

_______________________________________________________________________________

time: 02:05

I_cooler = 176 mA

SIS particles before:  3.3E8        
ESR particles when gas jet is on:  4E6
Target ON density:  4.53E12        
Target on time : 5 minutes

NTCAp file:
SC_2020-03-30_01-18-31
IQ_2020-03-30_00_22-52
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 200 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 02:24 , run file: run0267.lmd  (0266.lmd is garbage file)
run stop at :

_______________________________________________________________________________

time: 02:24

I_cooler = 176 mA

SIS particles before:  2.5E8        
ESR particles:  4.9E6
        


NTCAp file:
SC_2020-03-30_02-27-10
IQ_2020-03-30_02-27-10
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 200 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 02:24 , run file: run0267.lmd  (0266.lmd is garbage file)
file running: 0267.lmd

_______________________________________________________________________________

time: 03:00

I_cooler = 176 mA
      
ESR particles:  4.2E6
        


NTCAp file:
SC_2020-03-30_02-27-10
IQ_2020-03-30_02-27-10
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 200 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 02:24 , run file: run0267.lmd  (0266.lmd is garbage file)
file running: 0267.lmd

_______________________________________________________________________________

time: 03:30

I_cooler = 176 mA
      
ESR particles:  3.6E6
        


NTCAp file:
SC_2020-03-30_02-27-10
IQ_2020-03-30_02-27-10
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 200 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 02:24 , run file: run0267.lmd  (0266.lmd is garbage file)
file running: 0267.lmd

_______________________________________________________________________________

time: 04:00

I_cooler = 176 mA
      
ESR particles:  3.0E6
        


NTCAp file:
SC_2020-03-30_02-27-10
IQ_2020-03-30_02-27-10
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

In the picture below, a very nice storage of 206Pb81+ at 200 mA electron cooler current for no gas jet target can be seen in ESR. The measurement started at 02:24 and we will now finish it in 5-10 mins. We will now do two more measurements for I_cooler = 10 mA ans 20 mA.

I_cooler = 200 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 02:24 , run file: run0267.lmd  (0266.lmd is garbage file)
file running: 0267.lmd

_______________________________________________________________________________

time: 04:30

I_cooler = 176 mA
      
ESR particles:  2.5E6
        


NTCAp file:
SC_2020-03-30_02-27-10
IQ_2020-03-30_02-27-10
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 20 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 06:08 , run file: run0270.lmd  (0268.lmd and 0269.lmd are garbage files)
run stop at :

_______________________________________________________________________________

time: 06:08

I_cooler = -1 mA

SIS particles before:  2.5E8        
ESR particles:  3.01E6
        


NTCAp file:
SC_2020-03-30_06-11-08
IQ_2020-03-30_06-11-16
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 20 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 06:08 , run file: run0270.lmd  (0268.lmd and 0269.lmd are garbage files)
file running: 0270.lmd

_______________________________________________________________________________

time: 06:30

I_cooler = -1 mA

      
ESR particles:  2.6E5
        


NTCAp file:
SC_2020-03-30_06-11-08
IQ_2020-03-30_06-11-16
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

In the ESR picture below, the decay of beam is very fast initially for few minutes and then the decay is constant. But why does it decay for first few minutes ?

I_cooler = 20 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 06:08 , run file: run0270.lmd  (0268.lmd and 0269.lmd are garbage files)
file running: 0270.lmd

_______________________________________________________________________________

time: 07:00

I_cooler = -01 mA

      
ESR particles:  2.2E5
        


NTCAp file:
SC_2020-03-30_06-11-08
IQ_2020-03-30_06-11-16
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 20 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 06:08 , run file: run0270.lmd  (0268.lmd and 0269.lmd are garbage files)
file running: 0270.lmd

_______________________________________________________________________________

time: 07:30

I_cooler = -01 mA

      
ESR particles:  2.8E5
        


NTCAp file:
SC_2020-03-30_06-11-08
IQ_2020-03-30_06-11-16
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 20 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 06:08 , run file: run0270.lmd  (0268.lmd and 0269.lmd are garbage files)
file running: 0270.lmd

_______________________________________________________________________________

time: 08:00

I_cooler = -01 mA

      
ESR particles:  2.6E5
        


NTCAp file:
SC_2020-03-30_06-11-08
IQ_2020-03-30_06-11-16
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 20 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 06:08 , run file: run0270.lmd  (0268.lmd and 0269.lmd are garbage files)
file running: 0270.lmd

_______________________________________________________________________________

time: 08:30

I_cooler = -01 mA

      
ESR particles:  2.5E5
        


NTCAp file:
SC_2020-03-30_06-11-08
IQ_2020-03-30_06-11-16
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 10 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 08:52 , run file: run0271.lmd 


_______________________________________________________________________________

time: 08:52

I_cooler = -01 mA

SIS particles: 3.4E8      
ESR particles:  4.7E6
        


NTCAp file:
SC_2020-03-30_08-54-42
IQ_2020-03-30_08-54-42
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

Stopped Data recording for Restart of the measurement

I_cooler = 10 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 08:52 , run file: run0271.lmd 


_______________________________________________________________________________

time: 09:27

I_cooler = -01 mA

SIS particles: 3.4E8      
ESR particles:  2.5E5
        


NTCAp file:
SC_2020-03-30_08-54-42
IQ_2020-03-30_08-54-42
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

Stopped Data recording for Restart of the measurement

I_cooler = 10 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 09:28 , run file: run0272.lmd 


_______________________________________________________________________________

time: 09:28

I_cooler = -01 mA

SIS particles: 3.1E8      
ESR particles:  5.7E6
        


NTCAp file:
SC_2020-03-30_09-28-14
IQ_2020-03-30_09-28-14
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 10 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 09:28 , run file: run0272.lmd 


_______________________________________________________________________________

time: 10:00

I_cooler = -01 mA
      
ESR particles:  2.8E5
        


NTCAp file:
SC_2020-03-30_09-28-14
IQ_2020-03-30_09-28-14
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 10 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 09:28 , run file: run0272.lmd 


_______________________________________________________________________________

time: 10:31

I_cooler = -01 mA

SIS particles: 3.1E8      
ESR particles:  2.7E5
        


NTCAp file:
SC_2020-03-30_09-28-14
IQ_2020-03-30_09-28-14
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 10 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 09:28 , run file: run0272.lmd 


_______________________________________________________________________________

time: 10:57

I_cooler = -01 mA

SIS particles: 3.1E8      
ESR particles:  2.7E5
        


NTCAp file:
SC_2020-03-30_09-28-14
IQ_2020-03-30_09-28-14
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

To start a new run with NTCap, we need to retart NTCAP. 
1. Stop labview program. 
2. Start labview program and start a new run.

I_cooler = 10 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 09:28 , run file: run0272.lmd 


_______________________________________________________________________________

time: 12:00

I_cooler = -01 mA

SIS particles: 3.1E8      
ESR particles:  2.3E5
        


NTCAp file:
SC_2020-03-30_09-28-14
IQ_2020-03-30_09-28-14
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 10 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 09:28 , run file: run0272.lmd 


_______________________________________________________________________________

time: 12:30

I_cooler = -01 mA

SIS particles: 3.1E8      
ESR particles:  2.8E5
        


NTCAp file:
SC_2020-03-30_09-28-14
IQ_2020-03-30_09-28-14
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 10 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 09:28 , run file: run0272.lmd 


_______________________________________________________________________________

time: 13:00

I_cooler = -01 mA

SIS particles: 3.1E8      
ESR particles:  4.5E5
(Intensity rised @ around 12:52, without a new shot from SIS)
        


NTCAp file:
SC_2020-03-30_09-28-14
IQ_2020-03-30_09-28-14
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 10 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 09:28 , run file: run0272.lmd 


_______________________________________________________________________________

time: 13:30

I_cooler = -01 mA

SIS particles: 3.1E8      
ESR particles:  4.0E5
        


NTCAp file:
SC_2020-03-30_09-28-14
IQ_2020-03-30_09-28-14
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

I_cooler = 10 mA

beam: 206Pb81+
energy: 400 MeV/u

purpose: data for the measurement of half life of 206Pb81+ due to its interaction with electron cooler and residual gas

Detector position (CsISiPHOS): 60 mm
Detector position (MWPC):     -10 mm

run start at 09:28 , run file: run0272.lmd 
run stop at  14Ö23 , run file: run0272.lmd


_______________________________________________________________________________

time: 14:00

I_cooler = -01 mA

SIS particles: 3.1E8      
ESR particles:  4.2E5
        


NTCAp file:
SC_2020-03-30_09-28-14
IQ_2020-03-30_09-28-14
(saved in drive: p)

copy and repeat the above (below the line) every 30 minutes

1. stop run0272.lmd.
2. stop NTCAP. 
  NTCAp file:
  SC_2020-03-30_09-28-14
  IQ_2020-03-30_09-28-14
  (saved in drive: p)

Because the 
leakcurrent of 
6 Sipads is 
over the 
setting limit, 
the alarm of 
HV module is 
sounding.
Ruijiu 
increase the 
limit to 1500 
uA.

The gas bottle was empty. Tino replaced 
the previous old bottle with 50 bar gas left. 

Yuri is getting new gas bottles.

Yuri got a new gas bottle. We repalced 
the the new gas bottle. There is 200 
bar gas left now. 
The old gas bottle with 50 bar gas 
left was kept inside ESR.
The empty gas bottle was removed from 
ESR.  

The outlet volve was decreased by 30 degree.
Since the value is almost 0, we can not read the value of outlet volve.

turn down the hv and pull out the detector.  

suggest by 
Hi everybody,

is there now much more rate on  the detectors?

Perhaps it helps to turn down the bias for a while and to take the detectors out of the beam, by pulling the pocket out?

And then see if the leakage current comes down again.
good luck, Thomas

***********************************************
Dr. Thomas Faestermann  |  Tel:  +49-89-2723868
Physik Department E12   |
Techn. Univ. Muenchen   |  Mob:  +49-1626193388

The limit of the leakage current for all Si pads was increased from 1500 nA to 5000nA and 
leakage current was recorded for different Bias Voltages (32V, 35V, 40V, 45V, 50V, 55V 
and 60V).
Since, I_leakage remains < 3 uA for 60 V, it is decided to increase the Bias Voltage for 
all the Si-pads from 32 V to 60 V.
For DSSD and CsI, bias voltages remains same (-50V and -160V respectively).

Attached are plots for Si-pad 2 with hits from ionization of 206Pb81+ at the target.
The plots are representative for all Si-pads, the pattern is always the same!

y-axis: E n-side
x-axis: E p-side strip
condition: E_gate on peak in CsI

While strips 1, 2 and 7 look fine, strips 3 and 6 show already signs of degradation. 
For strips 4 and 5, it is clearly visible that something is wrong.
Those are the central strips, which probably see the most rate.

The same dataset was analyzed here: https://elog.gsi.de/esr/E121/62

This might be a hint to a radiation damage or to the fact that we operate at too low bias voltage (32 Volt).
Maybe it recovers if we increase bias to 60 Volt.

Run start: 0276.lmd

I analyzed the first measurement with 206Pb81+ beam, run 250-267. 

Below in the schottky spectrum, on left is 203Tl80+ contamination, in middel is 200Hg79+ contamination and on right most is 205Tl81+.
These contaminations cannot be seen on CsISiPHOS but can only be seen on schottky.
The goal now is to get rid of these contaminations by putting slits.

203Tl80+ impurity is removed by moving scrapper inside ESR.
Only 220Hg79+ is left now

It can be seen in the video how 203Tl80+ (on extreme left) and then 200Hg79+ (in middle originally) is separted from 205Tl81+ by using scrapper in ESR.
Now, we want 205Pb81+ mixed with 205Tl81+ to be separated as much as possible in FRS.

Vc = 212849.9349
Ic = 0.2

1)

Vcc=6400
f= 245.314
Veff= 219218.2989884789
β= 0.7143483279777152 
γ= 1.4289995125817443  


2)

Vcc=6800
f=245.227
Veff= 219618.31558866
β= 0.7147234572628363 
γ= 1.4297823255462372  

3)

Vcc=6000
f=245.404
Veff= 218818.2823347592
β= 0.7139723840585469 
γ= 1.4282166995124788  


Taking 1) and 2):

η : 0.33044950273377705 

αp1: 0.15925696358166558 
αp2: 0.1587208769044816 

Taking 1) and 3):

η : 0.34166460537796267 

αp1: 0.14804186093747995 
αp2: 0.14857882942379202 

Taking 2) and 3):

η : 0.33653854822327256 

αp1: 0.1526318314149861 
αp2: 0.15370488657848214  


αp average: 0.1534892081401479

The detector cable was disconnected . We entered and reconnected the cable.

On 1 April by 5 pm, we could stop the stochastic cooling after the stacking process and also change the orbit of the Tl beam to centre. 
Thanks to the efforts by the ESR team !

beam: 205Tl81+ (with no scraping)
energy: 400 MeV/u
storage time: zero

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):       mm

run start at 01:48 , first file: run0287.lmd
run stop  at xx:xx , last file:  run0xxx.lmd

_______________________________________________________________________________

time: 1:48

I_cooler =  mA


         
ESR particles after stacking:     
Number of stackings: 20
Target ON density:   4.3e12
Target on time: 01:54:34
Target off time: 02:04:34
Target on time for measurement: 10 mins (by local mode)       


NTCAp file:
SC_2020-04-01_16-36-43/0000xxx.iq.tdms
\IQ_2020-04-01_16-36-43/0000xxx.iq.tdms
IQ rate: 8 MS/s
(saved in drive : o)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping)
energy: 400 MeV/u
storage time: 2 hrs
(In the picture below, it can be seen that the beam cooled. On right most is the Tl beam and rest are the contaminants.)

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):       mm

run start at 01:48 , first file: run0287.lmd
file running:    0287.lmd

______________________________________________________
_________________________

time when accumulation starts: 02:08
time when storage starts: 02:21
time when storage ends: 04:21
I_cooler during storage time: 10 mA

I_cooler =  mA


         
ESR particles after stacking:     
Number of stackings: 20
Target ON density:   3.9e12
Target on time: 04:22:40
Target off time: 04:32:40
Target on time for measurement: 10 mins (by local mode)       


NTCAp file:
SC_2020-04-01_16-36-43/0000xxx.iq.tdms
\IQ_2020-04-01_16-36-43/0000xxx.iq.tdms
IQ rate: 8 MS/s
(saved in drive : o)

copy and repeat the above (below the line) for every storage time 
measurement

Electron cooler was off here. Thus, this measurement is not what we needed.
(in the picture below, it can be seen that the beam is not cooled)


beam: 205Tl81+ (no scraping)
energy: 400 MeV/u
storage time: 2 hrs

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):       mm

run start at 01:48 , first file: run0287.lmd
file running:    0287.lmd

_______________________________________________________________________________

time when accumulation starts: 04:45
time when storage starts: 04:55
time when storage ends: 06:55
I_cooler during storage time: 10 mA

I_cooler =  mA


I_SIS: 1.8e9      
ESR particles after stacking: ~e5  
Number of stackings: 20
Target ON density:   4e12
Target on time: 06:56:30
Target off time: 07:06:30
Target on time for measurement: 10 mins (by local mode)       


NTCAp file:
SC_2020-04-01_16-36-43/0000xxx.iq.tdms
\IQ_2020-04-01_16-36-43/0000xxx.iq.tdms
IQ rate: 8 MS/s
(saved in drive : o)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping)
energy: 400 MeV/u
storage time: ___ hrs

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):       mm

run start at ___ , first file: run____.lmd
file running:    ____.lmd

_______________________________________________________________________________

time when accumulation starts: __:__
time when storage starts:  __:__
time when storage ends:  __:__
I_cooler during storage time: __ mA

I_cooler =  __ mA


I_SIS: ___      
ESR particles after stacking: ___ 
Number of stackings: __
Target ON density:   _____
Target on time: __:__
Target off time: __:__
Target on time for measurement: 10 mins (by local mode)       


NTCAp file:
SC_2020-04-01______________
\IQ_2020-04-01_____________
IQ rate: 8 MS/s
(saved in drive : __)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping)
energy: 400 MeV/u
storage time: 4 hrs

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):       mm

run start at 01:48 , first file: run0287.lmd
file running:    0287.lmd

_______________________________________________________________________________

time when accumulation starts: 04:45
time when storage starts: 04:55
time when storage ends: 06:55
I_cooler during storage time: 10 mA

I_cooler =  mA


I_SIS: 1.8e9      
ESR particles after stacking: ~e5  
Number of stackings: 20
Target ON density:   4e12
Target on time: 06:56:30
Target off time: 07:06:30
Target on time for measurement: 10 mins (by local mode)       


NTCAp file:
SC_2020-04-01_16-36-43/0000xxx.iq.tdms
\IQ_2020-04-01_16-36-43/0000xxx.iq.tdms
IQ rate: 8 MS/s
(saved in drive : o)

copy and repeat the above (below the line) for every storage time measurement

Because the electron cooler was not switched on during beam accumulation in the previous measurement, we repeat this measurement again.
(In the picture below, it can be seen that the beam cooled. On right most is the Tl beam and rest are the contaminants.)

beam: 205Tl81+ (no scraping)
energy: 400 MeV/u
storage time: 2 hrs

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):       mm

run start at 08:46 , first file: run290.lmd
file running:   run290.lmd


time when accumulation starts: 09:06
time when storage starts:  09:16
time when storage ends:  10:59
I_cooler during storage time: 10 mA

I_cooler =  __ mA


I_SIS: 1.7e9      
ESR particles after stacking: 1e6
Number of stacking: 20
Target ON density:   3.9e12 atoms/cm2
Target on time:  11:00
Target off time: 11:10
Target on time for measurement: 10 
mins (by local mode)       


NTCAp file:
SC_2020-04-02_07-10-40
\IQ_2020-04-02_07-11-48
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the 
line) for every storage time 
measurement

Yuri sets up FRS with 2 g/cm2 degrader (previous one is 1 g/cm2). The ESR is not changed. The contamination should be less now.

For Alle and Kuehler the bottom left status should look like as shown in pictures below.

beam: 205Tl81+ (no scraping, Al ~1g/cm2)
energy: 400 MeV/u
storage time: zero hrs
S2:-10/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:05 , first file: run0292.lmd (File was started when stacking was ongoing. Maybe not all the stackings could be sen in the analysis.)
file running: 0292.lmd

_______________________________________________________________________________

time when accumulation starts: --
time when storage starts: 19:10
time when storage ends: 19:10
I_cooler during storage time: --

I_cooler =  177 mA


I_SIS: 2.2e9      
ESR particles after stacking: 3.5e6   (offset 1e5)
Number of stackings: ~40 (can be checked on NTCap data)
Target ON density: 3.45e12 
Target on time for measurement: 10 mins (by event mode)       


NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping, Al ~1g/cm2)
energy: 400 MeV/u
storage time: 1 hrs
S2:-10/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:05 , first file: run0292.lmd 
file running: 0293.lmd

_______________________________________________________________________________

time when accumulation starts: 19:23
time when storage starts: 19:36
time when storage ends: 20:36
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 2.2e9      
ESR particles after stacking: 2.6e6   (offset 1e5)
Number of stackings: 30
Target ON density: 3.44e12 
Target on time for measurement: 10 mins (by event mode)       


NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 3 hrs
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:05 , first file: run0292.lmd 
file running: 0295.lmd

_______________________________________________________________________________

time when accumulation starts: 20:37
time when storage starts: 20:51
time when storage ends: 23:51
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 1.75e9      
ESR particles after stacking: 2e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.48e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:05 , first file: run0292.lmd 
file running: 0295.lmd

_______________________________________________________________________________

time when accumulation starts: 12:08
time when storage starts: 12:25
time when storage ends: 12:55
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 2e9      
ESR particles after stacking: 8.2e5 (offset 1e5)
Number of stackings: 9
Target ON density: 3.45e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 1 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:05 , first file: run0292.lmd 
file running: 0295.lmd

_______________________________________________________________________________

time when accumulation starts: 01:09
time when storage starts: 01:20
time when storage ends: 02:20
I_cooler during storage time: -1 mA

I_cooler =  174 mA


I_SIS: 1.8e9      
ESR particles after stacking: 2.5e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.48e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:05 , first file: run0292.lmd 
file running: 0298.lmd

_______________________________________________________________________________

time when accumulation starts: 02:36
time when storage starts: 02:47
time when storage ends: 02:47
I_cooler during storage time: -1 mA

I_cooler =  175 mA


I_SIS: 2e9      
ESR particles after stacking: 2.7e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.49e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:05 , first file: run0292.lmd 
file running: 0298.lmd

_______________________________________________________________________________

time when accumulation starts: 03:00
time when storage starts: 03:12
time when storage ends: 03:42
I_cooler during storage time: -1 mA

I_cooler =  175 mA


I_SIS: 1.8e9      
ESR particles after stacking: 2.4e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.5e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 :  3 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-02_19-10-21
\IQ_2020-04-02_19-10-14
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 2 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 04:13,  run0300.lmd 
file running: 0300.lmd

_______________________________________________________________________________

time when accumulation starts: 04:21
time when storage starts: 04:32
time when storage ends: 06:32
I_cooler during storage time: -1 mA

I_cooler =  179 mA


I_SIS: 1.75e9      
ESR particles after stacking: 2.1e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.66e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 7 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-03_04-17-44
\IQ_2020-04-03_04-17-51
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

04:09 Electron cooler had some problem when we were stacking for 2 hours measurement.
04:20 GECEBG2T and GECEBG5T were Reset and then Switched on. Electron cooler started working again

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 04:13,  run0300.lmd 
file running: 0301.lmd

_______________________________________________________________________________

time when accumulation starts: 06:50
time when storage starts: 07:01
time when storage ends: 11:01
I_cooler during storage time: -1 mA

I_cooler =  179 mA


I_SIS: 1.75e9      
ESR particles after stacking: 2.1e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.66e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 8 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-02_04-17-44
\IQ_2020-04-02_19-04-17-51
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

Just two plots from the scopes for documentation:

magnets.png:

yellow: dipole
green and blue: quadrupoles
red: ESR current


kicker.png:

blue: SIS kicker
yellow: ESR kicker

green: SIS current
red: ESR current

trigger: SIS Kicker

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 4 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 04:13,  run0300.lmd 
file running: 0301.lmd

_______________________________________________________________________________

time when accumulation starts: 06:50
time when storage starts: 07:01
time when storage ends: 11:01
I_cooler during storage time: -1 mA

I_cooler =  179 mA


I_SIS: 1.75e9      
ESR particles after stacking: 2.3e6 (offset 1e5)
Number of stackings: 30
Target ON density: 3.3e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-03_04-17-44
\IQ_2020-04-03_04-17-51
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 11:17,  run0303.lmd 
file running: 0303.lmd

_______________________________________________________________________________

time when accumulation starts: 11:19
time when storage starts: 11:46
time when storage ends: 12:16
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 2e9      
ESR particles after stacking: 3.2e6 (offset 5e5)
Number of stackings: 54   (was set for 60 but we missed a few)
Target ON density: 3.66e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 23 mins (as Shahab wanted to record data with 400 MHz schottky)
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-03_11-20-14
\IQ_2020-04-03_11-20-05
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 11:17,  run0303.lmd 
file running: 0304.lmd

_______________________________________________________________________________

time when accumulation starts: 12:58
time when storage starts: 13:16
time when storage ends: 13:16
I_cooler during storage time: -1 mA

I_cooler =  176 mA


I_SIS: 2e9      
ESR particles after stacking: 2.4e6 (offset 5e5)
Number of stackings: 38   (was set for 60 but we missed a few)
Target ON density: 3.54e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 2 mins
(i.e. time for which electron cooler is on after gas jet) 


NTCAp file:
SC_2020-04-03_11-20-14
\IQ_2020-04-03_11-20-05
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 8 hr
S2: 0/35 mm

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 11:17,  run0303.lmd 
file running: 0306.lmd

_______________________________________________________________________________

time when accumulation starts: 13:32
time when storage starts: 13:51
time when storage ends: 21:51
I_cooler during storage time: -1 mA

I_cooler =  179 mA


I_SIS: 2e9      
ESR particles after stacking: 3e6 (offset 0)
Number of stackings: 50   
Target ON density: 3.95e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 

at 18:30 (start was at 13:51) the stored particles: I_ESR = 1.7e6
at 19:00 the stored particles: I_ESR = 1.6e6
at 19:30 the stored particles: I_ESR = 1.48e6
at 20:00 the stored particles: I_ESR = 1.5e6
at 20:30 the stored particles: I_ESR = 1.4e6
at 21:00 the stored particles: I_ESR = 1.34e6
at 21:30 the stored particles: I_ESR = 1.34e6


NTCAp file:
SC_2020-04-03_11-20-14
\IQ_2020-04-03_11-20-05
IQ rate: 8 MS/s
(saved in drive : p)

copy and repeat the above (below the line) for every storage time measurement

In this high contrast Schottky recording, the main three frequency peaks are resolved w.r.t. time from left to right:

203 Hg 80 +, 200 Hg 79+ and 205 Tl 81+

There are also some spurs visible, whose nature is not 100% sure. One possible explanation can be:

Since this is taken during the storage time (gas target still off), we have no separation between parent and daughter ions, the daughter 205 Pb 81+ basically has the same revolution frequency as parent. It is a possibility that after the decay, daughter ions are slowly cooled back to the nominal frequency. Daughter ions are highly charged and have a high velocity, so single ion sensitivity is expected. They come from all directions, but Schottky measures only the longitudinal plane. Symmetric spurs can hence be an indication of this.

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 22:11,  run0308.lmd 
file running: 0309.lmd

_______________________________________________________________________________

time when accumulation starts: 23:29
time when storage starts: 23:53
time when storage ends: 23:53
I_cooler during storage time: -1 mA

I_cooler =  176 mA


I_SIS: 1.75e9      
ESR particles after stacking: 2.9e6 (offset 5e5)
Number of stackings: ~53   
Target ON density: 4e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 2 mins
(i.e. time for which electron cooler is on after gas jet) 



NTCAp file:
SC_2020-04-03_22-12-50
\IQ_2020-04-03_22-13-48
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 22:11,  run0308.lmd 
file running: 0310.lmd

_______________________________________________________________________________

time when accumulation starts: 23:53
time when storage starts: 00:23
time when storage ends: 00:53
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 1.5e9      
ESR particles after stacking: 2.1e6 (offset 5e5)
Number of stackings: 60  
Target ON density: 4.03e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet) 



NTCAp file:
SC_2020-04-03_22-12-50
\IQ_2020-04-03_22-13-48
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 22:11,  run0308.lmd 
file running: 0311.lmd

_______________________________________________________________________________

time when accumulation starts: 02:15
time when storage starts: 02:39
time when storage ends: 02:39
I_cooler during storage time: -1 mA

I_cooler =  178 mA


I_SIS: 1.75e9      
ESR particles after stacking: 1.5e6 (offset 5e5)
Number of stackings: 60  
Target ON density: 4e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 2 mins
(i.e. time for which electron cooler is on after gas jet) 



NTCAp file:
SC_2020-04-03_22-12-50
\IQ_2020-04-03_22-13-48
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement

Please read the attachment.

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 6 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 22:11,  run0308.lmd 
file running: 0312.lmd

_______________________________________________________________________________

time when accumulation starts: 02:52
time when storage starts: 03:22
time when storage ends: 09:22
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 1.75e9      
ESR particles after stacking: 1.91e6 (offset 5e5)
Number of stackings: 80  
Target ON density: 4.23e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 8 mins
(i.e. time for which electron cooler is on after gas jet) 


I_ESR (04:00) :  1,76e6
I_ESR (04:30) :  1,62e6
I_ESR (05:00) :  1,56e6
I_ESR (05:30) :  1,42e6
I_ESR (06:00) :  1,33e6
I_ESR (06:30) :  1,27e6
I_ESR (07:00) :  1,20e6
I_ESR (07:30) :  1.12e6
I_ESR (08:00) :  -
I_ESR (08:30) :  -
I_ESR (09:00) :  9.8e5



NTCAp file:
SC_2020-04-03_22-12-50
\IQ_2020-04-03_22-13-48
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 5 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 22:11,  run0308.lmd 
file running: 0313.lmd

_______________________________________________________________________________

time when accumulation starts: 09:47
time when storage starts: 10:19
time when storage ends: 15:19
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 1.75e9      
ESR particles after stacking: 2e6 (offset 5e5)
Number of stackings: ~70 (was set to 80 but we missed few shots)  
Target ON density: 3.91e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 


I_ESR (10:30) :  1.95e6
I_ESR (11:00) :  -
I_ESR (11:37) :  1.7e6
I_ESR (12:00) :  -
I_ESR (12:30) :  -
I_ESR (13:00) :  -
I_ESR (13:37) :  1.37e6
I_ESR (14:07) :  1.28e6
I_ESR (14:30) :  -
I_ESR (15:00) :  1.20e6



NTCAp file:
SC_2020-04-03_22-12-50
\IQ_2020-04-03_22-13-48
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement

cooler is down. only one device is off GECEBG2T. updated now it is working.

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 22:11,  run0308.lmd 
file running: 0324.lmd

_______________________________________________________________________________

time when accumulation starts: 15:35
time when storage starts: 16:05
time when storage ends: 16:35
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 1.25e9      
ESR particles after stacking: 1.8e6 (offset 3.6e5)
Number of stackings: ~80  
Target ON density: 4.08e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet)  



NTCAp file:
SC_2020-04-03_22-12-50
\IQ_2020-04-03_22-13-48
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement

The beam is coming from SIS but doesn't arrive in ESR because the quadrupole magnets in ESR have failed.

Update (18:01): Problem has been resolved. 

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 22:11,  run0308.lmd 
file running: 0339.lmd

_______________________________________________________________________________

time when accumulation starts: 17:56
time when storage starts: 18:28
time when storage ends: 18:28
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 1.75e9      
ESR particles after stacking: 1.4e6 (offset 3.5e5)
Number of stackings: ~65 (was set to 80 but stacking broke down after ~65)  
Target ON density: 4.05e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 2 mins
(i.e. time for which electron cooler is on after gas jet)  



NTCAp file:
SC_2020-04-03_22-12-50
\IQ_2020-04-03_22-13-48
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement

There are further problems with beam stacking in ESR. It works occasionally but keeps failing.
There is also timing problem between SIS and FRS.

FAILED - measurement was stopped by sudden loss of the beam 

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 10 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:02,  run0343.lmd 
file running: 0347.lmd

_______________________________________________________________________________

time when accumulation starts: 19:17
time when storage starts: 19:55
time when storage ends: 05:55
I_cooler during storage time: -1 mA

I_cooler =  177 mA


I_SIS: 1.8e9      
ESR particles after stacking: 2.5e6 (offset 3e5)
Number of stackings: 100  
Target ON density: xxe12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 


I_ESR (20:30) :  2.25e6
I_ESR (21:00) :  2.1e6
I_ESR (21:30) :  2.0e6
I_ESR (22:00) :  1.8e6

NTCAp file:
SC_2020-04-04_19-04-52
\IQ_2020-04-04_19-04-52
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement

The beam in ESR was lost suddenly at ~22:20 due to a power supply failure of the quadrupoles.

Update (~20:40): Failure was resolved and new stacking started.

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 10 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:02,  run0343.lmd 
file running: 0366.lmd

_______________________________________________________________________________

time when accumulation starts: 22:43
time when storage starts: 23:23
time when storage ends: 09:23
I_cooler during storage time: -1 mA

I_cooler =  mA


I_SIS: 1.8e9      
ESR particles after stacking: 2.2e6 (offset 5e5)
Number of stackings: 100  
Target ON density: 4.24e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 6 mins
(i.e. time for which electron cooler is on after gas jet) 


I_ESR (00:06) :  1,98e6
I_ESR (00:30) :  1.95e6
I_ESR (01:00) :  1.8e6
I_ESR (01:30) :  1.65e6
I_ESR (02:00) :  1.55e6
I_ESR (02:30) :  1.45e6
I_ESR (03:00) :  1.36e6
I_ESR (03:30) :  1.3e6
I_ESR (04:00) :  1.18e6
I_ESR (04:41) :  1.15e6
I_ESR (05:00) :  1.07e6
I_ESR (05:30) :  1e6
I_ESR (06:00) :  9.5e5
I_ESR (06:30) :  9.1e5
I_ESR (07:00) :  8.5e5
I_ESR (07:30) :  -
I_ESR (08:00) :  -
I_ESR (08:37) :  7e5
I_ESR (09:00) :  7.06e5





NTCAp file:
SC_2020-04-04_19-04-52
\IQ_2020-04-04_19-04-52
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement

Schottky pictures from the 10 hour measurement gas target, including the time before gas target.

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time:  hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:02,  run0343.lmd 
file running: 0466.lmd

_______________________________________________________________________________

time when accumulation starts: 09:52
time when storage starts: 10:30
time when storage ends: 12:30
I_cooler during storage time: -1 mA

I_cooler = -1 mA  (20 mA)


I_SIS: 1.8e9      
ESR particles after stacking: 2.2e6 (offset 5e5)
Number of stackings: 100  
Target ON density: 4.16e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet) 



I_ESR (11:30) :  1.8e6
I_ESR (12:00) :  
I_ESR (12:10) :  1.7e6
I_ESR (12:30) :  1.62e6




NTCAp file:
SC_2020-04-04_19-04-52
\IQ_2020-04-04_19-04-52
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:02,  run0343.lmd 
file running: 0511.lmd

_______________________________________________________________________________

time when accumulation starts: 12:59
storage time at Manipulation 9 starts at: 13:
storage time at Manipulation 9 stops at:  14:  
I cooler during storage at Manipulation 9: -1 mA (20 mA)
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 

I_cooler = -1 mA  (20 mA)


I_SIS: 1.8e9      
ESR particles after stacking: e6 (offset 5e5)
Number of stackings: 100  
Target ON density at SC 7 E 07: 4.11e12 
Target on time for measurement: 10 mins (by event mode) 
Target ON density at SC 12 E 12: 4.11e12
Target on time for measurement: 5 sec (by event mode)



NTCAp file:
SC_2020-04-04_19-04-52
\IQ_2020-04-04_19-04-52
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 4 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 19:02,  run0343.lmd 
file running: 0539.lmd

_______________________________________________________________________________

time when accumulation starts: 15:27
time when storage starts: 16:05
time when storage ends: 20:05
I_cooler during storage time: -1 mA

I_cooler = -1 mA  (20 mA)


I_SIS: 2e9      
ESR particles after stacking: 2e6 (offset 5e5)
Number of stackings: 100  
Target ON density: 3.92e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 



I_ESR (16:30) :  1.9e6
I_ESR (17:00) :  1.75e6
I_ESR (17:30) :  1.6e6
I_ESR (18:00) :  1.55e6
I_ESR (18:30) :  1.45e6
I_ESR (19:00) :  1.3e6
I_ESR (19:30) :  1.25e6
I_ESR (20:00) :  1.2e6



NTCAp file:
SC_2020-04-04_19-04-52
\IQ_2020-04-04_19-04-52
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement/

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 20:21,  run0540.lmd 
file running: 0540.lmd

_______________________________________________________________________________

time when accumulation starts: 20:21
time when storage starts: 20:59
time when storage ends: 21:29
I_cooler during storage time: -1 mA

I_cooler = 179 mA  (20 mA)


I_SIS: 2e9      
ESR particles after stacking: 2.2e6 (offset 2.5e5)
Number of stackings: 100  
Target ON density: 4.14e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 5 mins
(i.e. time for which electron cooler is on after gas jet) 





NTCAp file:
SC_2020-04-04_19-04-52
\IQ_2020-04-04_19-04-52
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement/

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0.5 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 20:21,  run0540.lmd 
file running: 0546.lmd

_______________________________________________________________________________

time when accumulation starts: 21:43
time when storage starts: 22:21
time when storage ends: 22:51
I_cooler during storage time: -1 mA

I_cooler = 179 mA  (20 mA)


I_SIS: 1.75e9      
ESR particles after stacking: 2.2e6 (offset 3e5)
Number of stackings:  ~90 (was set to 100 but ~10 were missed) 
Target ON density: 4.2e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet) 





NTCAp file:
SC_2020-04-04_19-04-52
\IQ_2020-04-04_19-04-52
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement/

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 1 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 20:21,  run0540.lmd 
file running: 0549.lmd

_______________________________________________________________________________

time when accumulation starts: 23:04
time when storage starts: 23:42
time when storage ends: 00:42
I_cooler during storage time: -2 mA (20 mA)

I_cooler = 180 mA  


I_SIS: 1.8e9      
ESR particles after stacking: 2.2e6 (offset 3e5)
Number of stackings:  100
Target ON density: 4.24e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet) 





NTCAp file:
SC_2020-04-04_19-04-52
\IQ_2020-04-04_19-04-52
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement/

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 3 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 20:21,  run0540.lmd 
file running: 0555.lmd

_______________________________________________________________________________

time when accumulation starts: 00:57
time when storage starts: 01:35
time when storage ends: 04:35
I_cooler during storage time: -1 mA (20 mA)

I_cooler = 179 mA  


I_SIS: 1.8e9      
ESR particles after stacking: 2.4e6 (offset 3e5)
Number of stackings:  100 
Target ON density: 4.3e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 :  5mins
(i.e. time for which electron cooler is on after gas jet) 


2:00 I_ESR = 2.25e6
2:30 I_ESR = 2.04e6
3:00 I_ESR = 1.96e6
3:30 I_ESR = 1.87e6
4:00 I_ESR = 1.74e6
4:30 I_ESR = 1.56e6




NTCAp file:
SC_2020-04-06_00-59-46
\IQ_2020-04-06_00-59-38
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement/

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 20:21,  run0540.lmd 
file running: 0555.lmd

_______________________________________________________________________________

time when accumulation starts: 04:51
time when storage starts: 05:28
time when storage ends: 05:28
I_cooler during storage time: -1 mA (20 mA)

I_cooler = 179 mA  


I_SIS: 1.75e9      
ESR particles after stacking: 2.2e6 (offset 5e5)
Number of stackings:  100 
Target ON density: 4.45e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 :  2mins
(i.e. time for which electron cooler is on after gas jet) 



NTCAp file:
SC_2020-04-06_00-59-46
\IQ_2020-04-06_00-59-38
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement/

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 1.5 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 20:21,  run0540.lmd 
file running: 0558.lmd

_______________________________________________________________________________

time when accumulation starts: 05:41
time when storage starts: 06:19
time when storage ends: 07:49
I_cooler during storage time: -1 mA (20 mA)

I_cooler = 179 mA  


I_SIS: 1.75e9      
ESR particles after stacking: 2.3e6 (offset 5e5)
Number of stackings:  100 
Target ON density: 4.36e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 3 mins
(i.e. time for which electron cooler is on after gas jet) 



NTCAp file:
SC_2020-04-06_00-59-46
\IQ_2020-04-06_00-59-38
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement/

beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 10 hr
S2: 0/35 mm
s6: -20/7

purpose: data with TARGET ON

Detector position (CsISiPHOS):  out of the ring
Detector position (MWPC):  -60 mm

run start at 20:21,  run0540.lmd 
file running: 0558.lmd

_______________________________________________________________________________

time when accumulation starts: 08:21
time when storage starts: 09:27
time when storage ends: 19:27
I_cooler during storage time: -1 mA (20 mA)

I_cooler = 180 mA  


I_SIS: 1.8e9      
ESR particles after stacking: 3.1e6 (offset 4e5)
Number of stackings:  200 
Target ON density: 4.15e12 
Target on time for measurement: 10 mins (by event mode)      
time spend at manipulation 13 : 10 mins
(i.e. time for which electron cooler is on after gas jet) 



I_ESR (10:34): 2.78e6
I_ESR (11:07): 2.53e6
I_ESR (12:07): 2.2e6
I_ESR (13:43): 1.7e6
I_ESR (14:00): 1.6E6
I_ESR (14:43): 1.5e6
I_ESR (15:24): 1.43e6
I_ESR (16:19): 1.3e6
I_ESR (17:03): I.IIIeVI
I_ESR (18:20): 1.15e6 (frozen screen) 
I_ESR (18:50): 9.5e5
I_ESR (19:27): 8.5e5




NTCAp file:
SC_2020-04-06_00-59-46
\IQ_2020-04-06_00-59-38
IQ rate: 8 MS/s
(saved in drive : O)

copy and repeat the above (below the line) for every storage time measurement/

cheers!

We saw reduction in ESR beam life. It turned out that FRS has opened valves and venting caused us reduction of the quality of vacuum in ESR leading to beam loss. We manged to closed GEE5VV so that now beam is stable somehow.


how could you guys!!!!

arrrrgggggggg!!!!!!!

cooler component GECEBG2T again had to be reset.

E121 experiment is finished with the last 10 hours measurement at 19:47 ))
Many thanks to everyone for there significant contributions ))

2020.4.8  12:00Started copying 
data。
2020.4.9    11:52 Copied 6.3TB 
data. The copy speed is 65-67MB/s.
2020.4.15 Bring the two USB hard disk to my office and connect them  to lxg1298 computer.
Send email 

1.connect USB harddisk  to computer lxg1254 and  copy data to sever.

sync -rtmv --progress --checkSUD  /media/sdgl/data/ litv-exp@sbk0l9:/lustre/ap/litv-exp/2020-
04-14 e121_rchen/NTCAP/hd1

2020.05.02 08:06 copied 11.88 TB to server. 1.8TB rest on hard disk.

We identified an issue with randomly missing adc channels in all lmd-files before run 0273.
This led to errors in the unpacking process. 

This issue is solved with the new config and mapping for the unpacker. 
The respective files are attached here. 
The unpacker is ready to use in /u/litv-exp/unpacker/unpackexps/E121

The adc issue is also understood. We deactivated the internal adc thresholds during the experiment, because we encountered the very same unpacker errors. This solved the problem for all later runs, but we forgot to think about a solution for the earlier runs. 
Mea culpa.

Jan 

Attached is the f_user.c and the mbslog.l files.
The readout function is for the following setup:
3x ADC CAEN V785 
1x SCA CAEN V830
1x TDC CAEN V1190
1x Vulom TRB5 (triggerbox)
1x Vulom4b PEV (priority encoder)
1x TRIVA7
1x RIO4 R4L-47

  root [1] .L e121_analysis.C++
  root [2] run()

#include "e121_raw.h"

#include "e121_mapped.h"

Attached is a list of all set values for the 5 MSCF shaper modules.
This was done prior to run0251, which served as a final benchmark for those settings.
See: https://elog.gsi.de/esr/E121/62
And https://elog.gsi.de/esr/E121/104

The det. to MSCF assignment is the following:
MSCF 1: Si-pad 1 + 2 p-side/strips (ch. 1-7 + ch. 9-15)
MSCF 2: Si-pad 3 + 4 p-side/strips (ch. 1-7 + ch. 9-15)
MSCF 3: Si-pad 5     p-side/strips (ch. 1-7)
MSCF 4: Si-pad 6     p-side/strips (ch. 1-7)
MSCF 5: DSSD (ch. 1 - 4); CsI (ch. 7 & 8); Si-pad n-sides (ch. 11 - 16)

Note that only the pre-amplification stage of the MSI-8 amplifiers were used for all channels.

attached is a document showing fotos of all involved amplifiers in the chain to document the manual settings active during the experiment.

Summary:
Si-pad n-sides [MSI-8 (1)] were set to 5 GeV      (expected E-deposition ~2 GeV)
Si-pad p-sides [MPR-32 (1 & 2)] were set to 1 GeV (expected E-deposition ~2 GeV)
DSSD channels  [MSI-8 (2)] were set to 5 GeV      (expected E-deposition ~1.2 GeV)
CsI channels   [MSI-8 (2)] were set to 4 GeV      (expected E-deposition  46 GeV)

It seems we got clipped signals from the Si-pad p-sides, because the MPR-32 were saturated due to a wrong gain setting. 
This might explain, why there was not real influence on the spectra when adjusting MSCF settings for those channels.
 
I cannot comment on the CsI gain setting, because i don't know whether the given GeV-range by MesyTec directly applies for CsI & photodiode.

However, for DSSD and Si-pad n-sides the settings look okay.

(1.393*^-8 + 3.18*^-13 + 4.707*^-8)/4.707*^-8 = 1.29595

Attached is the info given by Carsten.
The instructions to operate NTCAP are given on https://wiki.gsi.de/ESR_EXP/ManualOfNTCAP

The frequency of the clock used as reference in scaler channel 13 has been measured precisely.
In contrast to what was expected (1.5MHz precisely), it is: 

f_ref =  1.5625(5) MHz