MUST2 SAMURAI_2018 S3-LEB-LPC SUPERNEMO MUGAST EXPAND SCALP GALATRON HiCARI VELO
  MUST2  Not logged in MUST2
Message ID: 537     Entry time: Tue May 29 01:33:58 2018
Author: Phil, Valerian, Franck 
ExpNbr: e744 
Type: EXL-PPT 
Category: General 
Status: Ongoing 
Target-Source:  
Subject: Gamma-ray spectra from PPT 
Attached are plots of gamma-ray energy spectra from PPT.

2-D plot is the PPT-CATS time (from PPT-MUST2 and MUST2-CATS time, obviously).

Two 1-D plots are PPT energy spectra gated on the two loci which can be seen in the 2-D plot.

Note that the 1.6-ish MeV line which may ordinarily expect to be due to the internal background from LaBr3 appears strongly in the prompt spectra and isn't really randomly time-correlated. We are suspicious, however, that the resolution is too good and that the peaks may be an artefact. We are checking this and will update this post accordingly.
Attachment 1: PPTSpectrum2D.png  50 kB  Uploaded Tue May 29 02:38:41 2018  | Hide | Hide all
PPTSpectrum2D.png
Attachment 2: PPTSpectrumPromptPeak1.png  25 kB  Uploaded Tue May 29 02:38:55 2018  | Hide | Hide all
PPTSpectrumPromptPeak1.png
Attachment 3: PPTSpectrumPromptPeak2.png  23 kB  Uploaded Tue May 29 02:39:41 2018  | Hide | Hide all
PPTSpectrumPromptPeak2.png

ELOG Home Page