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  Bound beta decay experiment on Tl-205, Page 9 of 9  Not logged in ELOG logo
Entry  Tue Dec 15 09:25:41 2020, Jan, DAQ, SiCsIPhos signal/amplitude reconstruction amps.pdf
 
Entry  Mon Mar 29 16:31:09 2021, Pierre-Michel, DAQ, cross section Pb81onAr.png
(1.393*^-8 + 3.18*^-13 + 4.707*^-8)/4.707*^-8 = 1.29595
Entry  Wed Aug 25 15:13:41 2021, Jan, DAQ, SC13 clock frequency 
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: 
Entry  Thu Sep 13 11:32:17 2018, Jan Glorius, Collaboration, Proposal E121_Litvinov.pdfE121_Approval.pdf
Attached is the beam time proposal submitted and accepted by the G-PAC in 2017.
Entry  Sun Mar 29 18:41:31 2020, ruijiu, Analysis, Ratio between MPWC rate and DSSD rate ratio.png
slit Ratio error
-1 18.64 0.4
-2 18.18 0.38
Entry  Sun Mar 29 21:02:43 2020, ruijiu, Analysis, decay line of 205Tl beam main_s6_neg8_202003292059.pngmain_s6_neg8_202003292059.root
decay line of 205Tl beam with Ar gas jet target on and S6 slit at -8mm
Ar gas density~1e12 atoms/cm2
Entry  Sun Mar 29 21:39:27 2020, ruijiu, Analysis, Ionization cross section and capture cross section for h-206Pb + Ar 202003292141.png
Ionization cross section = 1320 barn.
Capture cross section = 557+137+44.5=735.5.
sigma_Ion/sigma_cap=1.79
Entry  Sun Mar 29 23:48:12 2020, Jan, Analysis, run0251: E_spectra for CsISiPhos  14x
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!
Entry  Mon Mar 30 16:37:53 2020, ruijiu, Analysis,  
 
Entry  Mon Mar 30 23:30:35 2020, Jan, Analysis, run251 - Si-pad performance & status 7x
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!
Entry  Tue Mar 31 15:30:43 2020, ruijiu, Analysis, The beam position on DSSD with different conditions on on the dEE spectrum 6x
I analyzed the first measurement with 206Pb81+ beam, run 250-267. 
Entry  Fri Apr 17 18:27:34 2020, ruijiu, Analysis, backup data IMG_20200417_162202.jpg
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-
Entry  Wed Aug 5 17:19:16 2020, Rui-Jiu Chen, Analysis, Data structure DataStructure.pdf
 
Entry  Thu Nov 5 15:13:43 2020, Jan, Analysis, root script example e121_analysis.Ce121_mapped.he121_raw.h
Attached is an example root script/macro that shows how to use scripts for analysis.

Usage:
Entry  Sat Mar 28 15:19:23 2020, ruijiu, , start run e121_run_0236.lmd 
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.
Entry  Sun Mar 29 10:09:14 2020, ruijiu, , start run e121_run_0237.lmd 
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)
Entry  Sun Mar 29 13:43:46 2020, , ,  5765BDDD-C10A-44AD-AF85-07134B06F34E.jpeg
 
Entry  Sun Mar 29 14:01:45 2020, ruijiu, , beam position on DSSD IMG_20200329_140003.jpg
move the detector 1cm 
outside.from 60mm to 
70mm.
Entry  Sun Mar 29 14:29:13 2020, ruijiu, , e121_run_00240.lmd 
s6 positon at 50mm.
Entry  Thu Apr 9 11:47:28 2020, ruijiu, , backup data IMG_20200409_113155.jpg
2020.4.8  12:00Started copying 
data。
2020.4.9    11:52 Copied 6.3TB 
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