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.

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 !

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 )

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: 0.5 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: 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: 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

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: 0.5 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/

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

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

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.

Please read the attachment.

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).

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.

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