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ID Date Author Category Subject Year Text Attachments
  296   Fri Apr 30 09:57:57 2021 Jan GloriusCalibrationrun0005 - Xray90 calib Pb210 d=167.5mm 2021Efficiency calibration in the lab

Detector: GEM1800 - 90 deg
  
  295   Fri Apr 30 09:27:27 2021 Jan GloriusCalibrationrun0004 - Xray90 calib Pb210 d=167.5mm 2021Efficiency calibration in the lab

Detector: GEM1800 - 90 deg
  
  294   Thu Apr 29 20:34:09 2021 Jan GloriusCalibrationrun0003 - Xray90 calib Pb210 d=167.5mm2021Efficiency calibration in the lab

Detector: GEM1800 - 90 deg
  
  293   Thu Apr 29 20:32:52 2021 Jan GloriusCalibrationcalibration sources2021We use the following list of sources for calibration
of the Xray detectors:
  
  292   Wed Apr 28 09:12:47 2021 Jan, YuriDetectorsUI-diagram2021The UI-curve of the detector
U I
10 0.11
 UI_meas_curve.pdf 
  291   Thu Apr 22 10:56:20 2021 JanDetectorstarget-chamber det. distances2021This is the lookup table for the distance
of each x-ray detector to the target.
See attached foto for explanation.
 E127_xray_distances.jpg 
  290   Wed Apr 14 09:42:50 2021 JanDetectorsBaF HV gain matching2021The preliminary gain matching settings for
a full ADC range of ~12MeV:
 BaF_Na22_gain_match_v1.pngbaf_gain_match_v1.dat 
  289   Wed Mar 31 13:57:27 2021 JanDetectorsBaF HV settings2021The setting below is a start value for final
gain matching with a full ADC range of 12MeV:
  
  288   Wed Mar 31 13:52:04 2021 JanDetectorsBaF Na22 Testing2021On 30. and 31.03.2021 we did some testing
with the 6 BaF detectors.
  
  287   Tue Feb 2 13:59:00 2021 JanDetectorsDSSD installation and alignment2021The DSSD has been exchanged and aligned in

November 2020. After bakeout at 140°C 
  
  286   Tue Nov 24 15:35:49 2020 JanCalibrationDSSD X/Y channel mapping2021During the detector test [URL=https://elog.gsi.de/esr/E127/284]test
measurements[/URL] with alpha source the
allocation of the 16 X- and 16 Y-channels
  
  285   Fri Nov 20 15:53:37 2020 JanAnalysisTest of 2nd DSSSD (gen2)2021Here is the analysis of the test runs with
the 2nd DSSD (gen2) using the quick_si_plots.c
script attached.
 quick_si_plots.ce127.hSi2_run001.ana.rootSi2_run002.ana.root 
  284   Fri Oct 23 12:58:12 2020 JanDetectorsTest of 2nd DSSSD (gen2)2021This is the documentation of the source tests
with the 2nd micron DSSSD of 2nd generation
(label 3288-17, thickness 529um)
 Si2_run001.jpgSi2_run002.jpg 
  283   Fri Jun 5 14:06:15 2020 LaszloDetectorsDSSSD and SCRAPER position estimate for Xe and Te experiments2020We don't know the exact absolute positions
of the detector (+scraper) and the beam.
However, what we have to know is only these
 SP54120060514100.pdfDSSSD_new1.pdfIMG_20200321_025644.jpg 
  282   Tue May 19 16:48:15 2020 LaszloGeneralE127 beamtime overview Here is a representation how was the time
management during E127. The time, what we
could spend with measuring the 118Te(pg),
 E127_beamtime_overview.pngE127_beamtime_overview.pdf 
  281   Wed May 6 23:02:42 2020 LaszloCalibrationefficiency values I have calculated the efficiency values by
putting the energies of the K-REC peaks into
the phenomenological (empirical) function
 90degree_efficiency_combined.png90degree_efficiency_combined.ps 
  280   Thu Apr 30 22:55:45 2020 LaszloCalibrationinverse square law test I have made also the inverse square law fits.
We have data only for 90degre with the 241Am
source, but both for the 1. and 2. calibrations.
 inverse_square_law.zip 
  279   Thu Apr 30 17:40:57 2020 LaszloCalibrationefficiency fits For all 3 detector the calibration data sets
were combined to include the systematics
in the fit results directly. Combining means
 90degree_efficiency.zip145degree_efficiency.zip35degree_efficiency.zip 
  278   Wed Apr 29 16:06:28 2020 LaszloCalibrationefficiency fit - 90degree, combined dataset For the efficiency vs E fit of the 90degree
Xray detector I have used the following phenomenological
funciton:
 efficiency_90degree-1an2datasets_phen_lin.pngefficiency_90degree-1an2datasets_phen_lin_bigRange.png 
  277   Thu Apr 23 19:09:58 2020 LaszloCalibrationtheoretical K-REC cross sections  Find attached Andrey Surzhykov's calculations
for the theta angle in respect to the beam
direction (in lab. frame) vs. cross section
 9x 
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