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  proton-capture on 118Te, Page 28 of 29  Not logged in ELOG logo
ID Date Author Category Subject Yeardown
  249   Mon Mar 23 14:12:54 2020 RaganRunsE127 experiment stops 
close file : run104 (14:12:44)
E127 experiment finishes on a successful note )) Congratulations to the entire team !!
  250   Mon Mar 23 14:23:01 2020 Pierre-MichelDAQBackup recoil files 
Recoil detector files backup to lxg1260:/data.local2/hillenbrand/Laszlo
  251   Mon Mar 23 14:32:03 2020 JanAnalysisruns_100to104 NO-SCRAPER RESULTS 
Without scraper, we have very few (p,g) counts, hard to get numbers quickly, maybe ~50.

X-rays look fine!
  253   Mon Mar 23 15:48:15 2020 LaszloCalibrationrun105 - Xray90 calib Am241, distance 167.5mm, wrong? 
Detector: 90
Source: Am241 
Distance: 167.5mm
Start time: 15:46:49 23.03.2020
Stop time:  

file name: run105_xxxx.lmd
avrg. rate: 610Hz
dead-time:  7.5%

suspiciously not Gaussian shaped peaks --> investigation with oscilloscope
  254   Mon Mar 23 16:17:58 2020 LaszloCalibrationrun106 - garbage! 
run106 was clicked by accident, please delete!
  255   Mon Mar 23 16:21:33 2020 LaszloCalibrationrun107 - Xray90 calib Am241, distance 167.5mm 
Detector: 90
Source: Am241 
Distance: 167.5mm
Start time: 15:46:49 23.03.2020
Stop time:  17:32 23.03.2020

file name: run107_xxxx.lmd
avrg. rate: 610Hz
dead-time:  7%

not Gaussian shaped peaks, after previous investigations with the scope, the scope is disconnected.

Just to mention, in order to improve deadtime the other two Xray dets are disconnected.
  256   Mon Mar 23 17:32:42 2020 LaszloCalibrationrun108 - Xray90 calib Ba133, distance 167.5mm - high rate - deadtime too high! 
Detector: 90
Source: Ba133 - strong source
Distance: 167.5mm
Start time: 17:32:11 23.03.2020
Stop time:  17:35:34

file name: run108_xxxx.lmd
avrg. rate: 2.7kHz
dead-time:  26%
  257   Mon Mar 23 17:40:33 2020 LaszloCalibrationrun109 - Xray90 calib Ba133, distance 167.5mm -low rate 
Detector: 90
Source: Ba133 - weak source
Distance: 167.5mm
Start time: 17:40:11 23.03.2020
Stop time:  

file name: run109_xxxx.lmd
avrg. rate: 170Hz
dead-time:  2%
  258   Mon Mar 23 18:15:55 2020 LaszloGeneralnoisy 90degree Xray det 
Uwe found out, that there was some common ground effect between 90 and 145 degree detectors. after moving the grounds, we could record much more nicer (Gaus 
shaped) peaks in the spectra. Now we continue with this settings
  259   Mon Mar 23 18:17:27 2020 LaszloCalibrationrun110 - Xray90 calib Ba133, distance 167.5mm -low rate - LESS NOISE 
Detector: 90
Source: Ba133 - weak source
Distance: 167.5mm
Start time: 18:14:50 23.03.2020
Stop time:  

file name: run110_xxxx.lmd
avrg. rate: 160Hz
dead-time:  2%

Uwe reduced the noise on the 90 degree detector (see previous elog entry)
  260   Mon Mar 23 19:32:53 2020 LaszloCalibrationrun112 - Xray90 calib Am241, distance 200mm - LESS NOISE 
Detector: 90
Source: 241Am
Distance: 200mm
Start time: 20:01:43 23.03.2020
Stop time:  

file name: run112_xxxx.lmd
avrg. rate: 444Hz
dead-time:  5%

Uwe reduced the noise on the 90 degree detector (see elog entry)
  261   Mon Mar 23 20:52:37 2020 LaszloCalibrationrun113 - Xray145 calib Am241, distance 305mm - LESS NOISE 
Detector: 145
Source: 241Am
Distance: 305mm
Start time: 20:01:43 23.03.2020
Stop time:  21:43:34

file name: run113_xxxx.lmd
avrg. rate: 220Hz
dead-time:  2.5%

Uwe reduced the noise on the 145 degree detector as well. 
  262   Mon Mar 23 21:47:40 2020 LaszloCalibrationrun114 - Xray145 calib Ba133, distance 305mm - LESS NOISE 
Detector: 145
Source: 133Ba - strong source
Distance: 305mm
Start time: 21:47:20 23.03.2020
Stop time:  22:04:06 23.03.2020

file name: run114_xxxx.lmd
avrg. rate: 950Hz
dead-time:  11%

Uwe reduced the noise on the 145 degree detector as well. 

During measurement the oscilloscope remained connected!
  263   Mon Mar 23 22:25:41 2020 LaszloCalibrationrun115 - Xray35 Ba133 d=334mm, Xray90 Lead source, d=167.5mm 
Simultaneous measurement of Xray35 and Xray90. The dead-time is <3%

Detector: 35
Source: 133Ba - strong source
Distance: 334mm

Detector: 90
Source: Lead source
Distance: 167.5mm: the lead source was measured 3mm width with the source in the middle. Therefore, I set the paper zylinder to ~169mm distance. 

Start time: 22:25:22 23.03.2020
Stop time:  00:04:49 24.03.2020

file name: run115_xxxx.lmd
avrg. rate35: 75Hz
avrg. rate90: 55Hz
dead-time:  2%

Uwe reduced the noise on the 145 degree detector as well. 

During measurement the oscilloscope remained connected!
  264   Tue Mar 24 00:11:35 2020 LaszloCalibrationrun116 - Xray35 calib AM241, distance 334mm 
Detector: 35
Source: 241Am
Distance: 334mm
Start time: 00:11:03 24.03.2020
Stop time:  10:01:4224.03.2020

file name: run116_xxxx.lmd
avrg. rate: 20Hz
dead-time:  0%
  265   Tue Mar 24 10:20:26 2020 LaszloCalibrationPictures of the xray calibration 
  266   Tue Mar 24 10:59:18 2020 JanCalibrationSources - Specifications 
We used the following sources:

Am241 (OM666) [GSI - Uwe]
Reference Activity: 430 kBq
Uncertainty: 3%
Reference Date: 19.09.2006

Ba133 hi (AN-5868) [GSI - Kozuharov]
Reference Activity: 438 kBq
Uncertainty: 3%
Reference Date: 01.06.2019

Ba133 low (OL 918) [GSI - Angela]
Reference Activity: 39.7 kBq
Uncertainty: 3%
Reference Date: 08.09.2006

Pb210 (2015-1552) [GUF - Rene]
Reference Activity: 7.42 (15) kBq
Uncertainty: 0.15/7.42 = 2%
Reference Date: 01.01.2016
  267   Wed Mar 25 14:26:22 2020 LaszloCalibrationrun111 - Xray90 calib Am241, distance 167.5mm - LESS NOISE 
Detector: 90
Source: 241Am
Distance: 167.5mm
.Start time: ? 23.03.2020
Stop time:  

file name: run111_xxxx.lmd
avrg. rate: 444Hz
dead-time:  5%

Uwe reduced the noise on the 90 degree detector (see elog entry)
  268   Wed Mar 25 15:06:09 2020 LaszloAnalysisquick summary of the run numbers 
  269   Thu Mar 26 12:05:22 2020 LaszloCalibrationmeasurement of collimators 
The measurements were taken by using a caliper ruler, with precision of +/-0.05mm
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