AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40
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Message ID: 190     Entry time: Wed Feb 9 08:01:41 2022
Author: OH, CB, G-HC 
Subject: Results from no beam overnight 
08:52 Overnight the DAQ was left running to check if there was any individual radioactivity in the Si.
      This is stored in R7_75

      It was observed that even with no beam the detectors continued to increase in leakage current overnight but slowly - Attachment 1
      We then stopped the DAQ and gave the detector a single shake.
      This caused the leakage currents to decrease but not to the same level that they did last night - Attachment 2

13:45 Bias tripped as people removed the cover on the windows on the interaction chamber
      Iset was still at 11uA for safety
      Will leave off until they are finished

      
Attachment 1: 220209_0852_leakage.png  18 kB  | Show | Show all
Attachment 2: 220209_0900_leakage_shake.png  21 kB  | Show | Show all
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