| ID |
Date |
Author |
Category |
Subject |
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72
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Mon Mar 30 03:30:03 2020 |
Sergiy, Dima | Runs | Second measurement with 206Pb81+ beam at I_cooler = 200 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: 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 |
|
73
|
Mon Mar 30 04:00:19 2020 |
Sergiy, Dima | Runs | Second measurement with 206Pb81+ beam at I_cooler = 200 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: 04:00
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 |
|
75
|
Mon Mar 30 04:30:17 2020 |
Sergiy, Dima | Runs | Second measurement with 206Pb81+ beam at I_cooler = 200 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 |
|
13
|
Wed Jan 29 10:42:42 2020 |
Shahab | General | Gas target control with the new control system event |
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. |
| Attachment 1: IMG_20200128_153508.jpg
|
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| Attachment 2: IMG_20200128_145345.jpg
|
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| Attachment 3: IMG_20200128_145340.jpg
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| Attachment 4: IMG_20200128_145307.jpg
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| Attachment 5: IMG_20200128_144555.jpg
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56
|
Sun Mar 29 18:55:19 2020 |
Shahab | Runs | Frequency list for identification |
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 |
| Attachment 1: freqs.jpg
|
|
|
110
|
Tue Mar 31 23:31:41 2020 |
Shahab | Runs | alpha_p calibration |
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 |
| Attachment 1: ap_calibration.jpg
|
|
|
132
|
Fri Apr 3 10:06:15 2020 |
Shahab | Runs | Plots from Scopes |
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 |
| Attachment 1: magnets.png
|
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| Attachment 2: kicker.png
|
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|
133
|
Fri Apr 3 11:52:27 2020 |
Shahab | Runs | Stacking 54 times! |
|
| Attachment 1: 2020-04-03_11-48-11-781.png
|
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|
138
|
Fri Apr 3 14:08:41 2020 |
Shahab | Runs | Stacking |
|
| Attachment 1: 2020-04-03_14-07-13-250.png
|
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139
|
Fri Apr 3 17:55:13 2020 |
Shahab | Runs | Nice picture from 205-Tl |
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. |
| Attachment 1: Tl-daughter_spurs.PNG
|
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|
146
|
Sat Apr 4 13:41:04 2020 |
Shahab | Runs | cooler down |
cooler is down. only one device is off GECEBG2T. updated now it is working. |
|
154
|
Sun Apr 5 10:21:54 2020 |
Shahab | Runs | 10 hour measurement pictures |
Schottky pictures from the 10 hour measurement gas target, including the time before gas target. |
| Attachment 1: 2020-04-05-10h-aftergasjet2.PNG
|
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| Attachment 2: 2020-04-05-10h-aftergasjet.PNG
|
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| Attachment 3: 205Tl_gasjet_view3.PNG
|
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156
|
Sun Apr 5 12:48:58 2020 |
Shahab | Runs | 2hour measurement parent pictures |
|
| Attachment 1: gas_jet_mother_245.PNG
|
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| Attachment 2: gas_jet_mother_410.png
|
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| Attachment 3: IBS_245MHz_all_ions_1D.PNG
|
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| Attachment 4: IBS_245MHz_all_ions.PNG
|
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| Attachment 5: IBS_245MHz_zoom_ions_1D_wo_marker.PNG
|
|
| Attachment 6: IBS_245MHz_zoom_ions_1D.PNG
|
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|
166
|
Mon Apr 6 09:34:58 2020 |
Shahab | Runs | Pictures from one and a half hour measurement |
cheers! |
| Attachment 1: wideband_rec_001.PNG
|
|
|
168
|
Mon Apr 6 14:57:04 2020 |
Shahab | Runs | cooler down |
cooler component GECEBG2T again had to be reset. |
|
81
|
Mon Mar 30 07:34:06 2020 |
Tino | Runs | Second measurement with 206Pb81+ beam at I_cooler = 20 mA |
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 |
|
82
|
Mon Mar 30 08:00:40 2020 |
Tino | Runs | Second measurement with 206Pb81+ beam at I_cooler = 20 mA |
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 |
|
83
|
Mon Mar 30 08:32:05 2020 |
Tino | Runs | Second measurement with 206Pb81+ beam at I_cooler = 20 mA |
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 |
|
84
|
Mon Mar 30 08:56:04 2020 |
Tino | Runs | Second measurement with 206Pb81+ beam at I_cooler = 10 mA |
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 |
|
85
|
Mon Mar 30 09:26:37 2020 |
Tino | Runs | Stopped Second measurement with 206Pb81+ beam at I_cooler = 10 mA |
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 |