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  nuclear two-photon decay, Page 11 of 12  Not logged in ELOG logo
ID Date Author Category Subjectup Text Attachments
  95   Sun May 9 05:54:11 2021 RaganAnalysisoffset btw png and tiq files from server?This is due to the 50% trigger setting in
the spectrum analyzers ))
  
  80   Sat May 8 21:08:13 2021 Helmut, Sergey, Shahab, Wolfram, YuriAcceleratoroptimisation of sextuplesThe optimisation of sextuples is finished.
Record a few files.
  
  118   Sun May 9 23:32:24 2021 HelmutAcceleratorparammodi savesHere are parammodi saves for TE-line and ESR
for all four fragment settings:
For the first run of 72Ge (7.May) I do not
 8x 
  29   Fri May 7 03:51:56 2021 ShahabAnalysispeak frequenciesa reference schematic of the peaks on 410
MHz (211th harmonic) and 245 MHz (126th harmonic)
 New_Doc_6_1.jpgNew_Doc_6_2.jpg 
  88   Sun May 9 02:32:58 2021 Jacobus, ShahabRunspossible 52-Mn isomerthe intensity of the line on the left side
is so high, it is difficult to see the isomers
in the middle as can be seen in the auto
 E143-245MHz-2021.05.09.01.23.19.468.tiq.pngasd.jpg 
  174   Thu Jul 1 18:49:59 2021 ShahabRunspossible isomer?   possible_isomer.png 
  111   Sun May 9 19:03:02 2021 Rodostina, Oliver, Wolfram, Helmut, Yuri, ShahabRunsquadrupoles were down, fixed.    
  77   Sat May 8 17:29:54 2021 Yuri, Sergey, Wolfram, Michael, ShahabRunsrecording Kr decay measurement on NTCAPUc = 250mA
decay Kr 78, 476 MeV/u
  
  117   Sun May 9 23:28:25 2021 Kanika, Alex, Wolfram, Helmut, ShahabRunsreturn with the Ge setting of the last nightstarting filenames:

E143-410MHz-2021.05.09.23.28.24.018.tiq
  
  27   Fri May 7 03:44:55 2021 Helmut WeickAcceleratorscraper optimisationOpened TE4 slits again to +/-10mm.

Then we tried different scrapers:
  
  85   Sun May 9 01:19:47 2021 Helmut, SergeyAcceleratorscraper optmisation for 72GeTo improve the isochronicity still in the
72Ge setting sextupoles and scrapers wer
varies successfully.
 IMG_20210508_210509.jpg 
  116   Sun May 9 23:24:49 2021 Helmut, Wolfram, YuriAcceleratorscraper optmisation for 72GeWe tried the scrapers a bit, because right
of peak some background appeared.
  
  173   Thu Jul 1 18:07:10 2021 ShahabRunssettings of the analyzers after changing the trigger position   asd.jpgasd2.jpg 
  153   Wed Jun 30 13:57:14 2021 Yuri, SergeyAcceleratorsextupoles + scraper positionsAfter setting up on 70Se
Sextupoles were adjusted to optimize the
resolution of the 70Se peak. Set values are
 photo_2021-06-30_14-09-08.jpgphoto_2021-06-30_14-02-25.jpg 
  183   Thu Jul 1 21:35:32 2021 ShahabRunssome pics after 15dB amplification on 410   asd.png821.png 
  184   Thu Jul 1 23:07:47 2021 IK, KKRunssource
The change of the source happens now
  
  139   Tue Jun 29 20:40:55 2021 Rui-Jiu ChenDAQstart NTCAPCarrier Frequency:245MHz.
IQ rate 20MSamples/s
Reference level:-90 dBm
  
  81   Sat May 8 21:10:24 2021 Michael, Ruijiu, Helmut, Yuri, Wolfram, Sergey, ShahabRunsstarted data taking with high resolutionafter optimizing the scrapers we have reached
the highest possible resolution in the isochronous
mode.
 E143-245MHz-2021.05.08.20.17.39.000.tiq.pngE143-410MHz-2021.05.08.21.18.51.447.tiq.png 
  26   Fri May 7 03:33:11 2021 Liliana, Akash, Wolfram, Helmut, ShahabGeneralstatusAt the moment we see a second peak to the
left of each intense line. 
The distance between the main peak and the
  
  216   Fri Jul 2 17:31:04 2021 LilianaGeneralstatusat 17:20 intensity was suddenly reduced. 
Operators checked. Intensity was a bit low
and fluctuating for a while (8e8 to 1e9)
  
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