 Sat Mar 28 18:11:13 2020, Alex, Yuri, General, no beam in the ESR
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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 |
Tue Dec 8 15:47:07 2020, Jan, Detectors, manual preamp & shaper settings for CsISiPhos 
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attached is a document showing fotos of all involved amplifiers in the chain to document the manual settings active during the experiment.
Summary:
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Tue Mar 12 12:54:58 2019, Chen, Sidhu, DAQ, how to start DAQ and plot histogram.
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[B]1. login litv-exp account[/B]
rchen@lxg1254:/data.local2/2002_238UIMS$ ssh -X litv-exp@lxg0155.gsi.de
(don't login on lx-pool.)
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Thu Oct 1 22:20:03 2020, Jan, DAQ, final unpacker config
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We identified an issue with randomly missing adc channels in all lmd-files before run 0273.
This led to errors in the unpacking process.
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Mon Nov 2 16:45:55 2020, Jan, DAQ, f_user & mbslog
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Attached is the f_user.c and the mbslog.l files.
The readout function is for the following setup:
3x ADC CAEN V785
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Sat Mar 28 16:12:25 2020, ruijiu, ragan, DAQ, enter ESR and turn on the HV crate.
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Sun Mar 29 14:29:13 2020, ruijiu, , e121_run_00240.lmd
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| s6 positon at 50mm. |
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Wed Apr 1 01:05:36 2020, ruijiu, Detectors, detector position fixed at 60 mm
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| The detector cable was disconnected . We entered and reconnected the cable. |
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Sun Mar 29 21:02:43 2020, ruijiu, Analysis, decay line of 205Tl beam
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decay line of 205Tl beam with Ar gas jet target on and S6 slit at -8mm
Ar gas density~1e12 atoms/cm2 |
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Mon Mar 29 16:31:09 2021, Pierre-Michel, DAQ, cross section
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| (1.393*^-8 + 3.18*^-13 + 4.707*^-8)/4.707*^-8 = 1.29595 |
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Sat Apr 4 13:41:04 2020, Shahab, Runs, cooler down
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| cooler is down. only one device is off GECEBG2T. updated now it is working. |
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Mon Apr 6 14:57:04 2020, Shahab, Runs, cooler down
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| cooler component GECEBG2T again had to be reset. |
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Tue Feb 25 15:49:58 2020, ruijiu chen, DAQ, changing scaling factor.
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How to change scaling factor?
The parameters is in f_user.c file:
1. open the f_user.C with emacs :
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Sun Mar 29 14:01:45 2020, ruijiu, , beam position on DSSD
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move the detector 1cm
outside.from 60mm to
70mm.
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Sat Mar 28 15:23:05 2020, Alex, Ragan, Mei Bai , General, beam lifetime measurement
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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? |
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Thu Apr 9 11:47:28 2020, ruijiu, , backup data
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2020.4.8 12:00Started copying
data。
2020.4.9 11:52 Copied 6.3TB
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Fri Apr 17 18:27:34 2020, ruijiu, Analysis, backup data
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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-
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Tue Mar 31 23:31:41 2020, Shahab, Runs, alpha_p calibration
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Vc = 212849.9349
Ic = 0.2
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Sun Apr 5 13:05:43 2020, Ragan, Shahab, Runs, Zero measurement (S2: 0/35 mm and S6: -20/7 mm)
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beam: 205Tl81+ (no scraping , Al ~1g/cm2)
energy: 400 MeV/u
storage time: 0 hr
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Thu Apr 2 21:03:40 2020, Ragan, Yuri, Sergey, Nikos, Runs, Zero hour measurement (S2:-10/35 mm)
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beam: 205Tl81+ (no scraping, Al ~1g/cm2)
energy: 400 MeV/u
storage time: zero hrs
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