 Mon Mar 30 23:30:35 2020, Jan, Analysis, run251 - Si-pad performance & status 7x
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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!
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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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Thu Nov 5 15:13:43 2020, Jan, Analysis, root script example
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Attached is an example root script/macro that shows how to use scripts for analysis.
Usage:
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Thu Nov 19 09:14:40 2020, Jan, Detectors, remote MSCF settings for CsISiPHOS
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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
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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 Dec 15 09:25:41 2020, Jan, DAQ, SiCsIPhos signal/amplitude reconstruction
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Wed Aug 25 15:13:41 2021, Jan, DAQ, SC13 clock frequency
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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:
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Mon Dec 3 15:06:04 2018, Chen, Sidhu, DAQ, Test of two preamplifier.
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[B]Description:[/B]
We have two pre-amplifiers:
New: Max. range 5GeV, Two sensitivity options: 1 GeV and 5 GeV, Decay time = 30 us, pulse input 220 MeV/u, Ser. #MPR-32-D-5000-30-1118380.
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Mon Dec 10 11:59:15 2018, Chen, Sidhu, Detectors, Test of shaping amplifier.
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[IMG]elog:6/1[/IMG]
[IMG]elog:6/2[/IMG]
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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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Tue May 7 15:52:47 2019, Chen, Sidhu, SlowControl, GUI for remote control of MSCF+MHV4 [detailed]
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We have a GUI for remote controlling our MesyTec modules MSCF16 and MHV4 for E121 experiment.
Here is the instructions to run it:
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Tue Aug 27 14:53:47 2019, Chen, Sidhu, Detectors, The thickness uncertainty of Ta is less than 1%.
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The thickness of Ta plate have been measured by target group. The result is show as following.
According to this measurement, the thickness uncertainty is less than 1%.
This thickness uncertainty is good enough for Tl experiment.
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Thu Oct 24 15:36:13 2019, Chen, Sidhu, Detectors, Detector installation process
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[IMG]elog:12/1[/IMG]
[IMG]elog:12/2[/IMG]
[IMG]elog:12/3[/IMG] |
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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 |
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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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Sat Apr 4 22:31:02 2020, Alex, Esther, General, Beam in ESR lost
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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. |
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Sat Mar 28 16:09:50 2020, Alex, General, no beam in the ESR
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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. |
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Wed Dec 5 17:29:24 2018, Chen, Sidhu, Detectors, signal map 13x
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[B]Description:[/B]
Here is a summary of signal map. The charged particle detector includes 6 layers of Si-Pad, 1 DSSD and 1 CsI.
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Sun Mar 29 13:43:46 2020, , ,
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