AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40
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Message ID: 732     Entry time: Sat Jun 30 03:05:36 2018
Author: OH 
Subject: Saturday 30 June 
11:05 Bias and leakage currents ok - attachment 1
      FEE temperatures ok
      System wide checks ok
      Currently on file R9_74
      Temperature 25.3C, Humidity 42.9%, D.P +12.1C

13:27 Bias and leakage currents ok - attachment 2
      FEE Temperatures ok
      System wide checks ok

      Analysis of the pulser run R9_52 -> R9_74 has shown no major losses in terms of apparent broken bond wires.
      The large gap in FEE64 29 can be explained by an ASIC dropping out: See https://elog.ph.ed.ac.uk/AIDA/730
      Another odd trend appears in the channels relating to DSSD 8 on the x side. - attachment 5
      The pattern shows one strip on one strip off for the first 32 strips.
      nnaida18 is also the FEE which is running at a much higher rate during this run. - attachment 3
      I'm not sure that I believe that these channels are actually relate to broken bond wires.

      Here are the hit patterns for the 8 DSSD - attachment 4
      Attached is also the x and y histograms for DSSD 8 which shows a weird pattern - attachment 5
Attachment 1: 180630_1104_bias.png  20 kB  Uploaded Sat Jun 30 04:07:38 2018  | Hide | Hide all
180630_1104_bias.png
Attachment 2: 180630_1327_BIAS.png  20 kB  Uploaded Sat Jun 30 06:29:01 2018  | Hide | Hide all
180630_1327_BIAS.png
Attachment 3: 180630_1335_Stats.png  62 kB  Uploaded Sat Jun 30 06:35:56 2018  | Hide | Hide all
180630_1335_Stats.png
Attachment 4: 180630_8dssd_map.png  61 kB  Uploaded Sat Jun 30 07:22:34 2018  | Hide | Hide all
180630_8dssd_map.png
Attachment 5: 180630_xandydssd8.png  11 kB  Uploaded Sat Jun 30 07:22:58 2018  | Hide | Hide all
180630_xandydssd8.png
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