AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40
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Message ID: 482     Entry time: Sat Jun 18 09:46:57 2022
Author: OH, NH 
Subject: Friday 17th June 
Summary of the day:
Small improvements were made throughout the day but by far the biggest change to the rate in the FEEs came from disabling the waveforms
This was done by setting ADC con

Initial jumper configuration:
FEE LK
1   2 4
2   1 2 4
3   2 3 4
4   2 4
5   2 4
6   1 2 4
7   2 3 4
8   1 2 4

13:22 LK2, 3 and 4 on all p+n - attachment 1

14:20 AC mains relay connected to AC voltage stabilisers + on separate mains socket from DESPEC - attachment 2
      Same configuration but waveforms disabled (p+n improvment) - attachment 3
      Layout 1 - attachment 4

14:32 all FEE power cables moved to PSU 2 (Lower one in rack, upper one was slow to start for 1 FEE pair, likely the 5V slow to start)
      Previously all FEEs on their own pair within  a psu
      New order 1,3 2,4 5,7 6,8
      Waveforms on - all bad - attachment 5
      Waveforms off - all p+n better - attachment 6

14:54 interlock removed from AC mains relay
      Also noticed adaptor board on 2 not in fully -> Now in
      p+n generally better - attachment 7
      Without waveforms - p+n better again - attachment 8

16:04 Platform moved into position
      Interlock power cable removed from extension lead
      w/ waveform - p+n slightly worse
      w/o waveform - p+n same as beffore

16:14 LK3 removed from 1 and 5
      w/ waveform -> p+n slightly worse - attachment 9
      w/o waveform -> p+n best yet - attachment 10

16:33 LK1 wasn't on all n+n was only on 2, 6 and 8
      Removed from 6 -> only one LK1 per DSSD
      w/ waveforms - all bad - attachment 11
      w/o waveforms - no change - attachment 12

16:59 LK1 removed from 2->4 This is the FEE with the BIAS braid
      w/ waveform p+n better - attachment 13
      w/0 waveform p+n better, n+n worse? - attachment 14

17:21 Bias filters added to n+n
      w/ waveform - no change - attachment 15
      w/o wwaveofrm - P=n worse - attachment 16
      Stats 0x21 - attachment 17
      Stats 0x14 - attachment 18
      Stats 0x12 - attachment 19

17:42 Bias filter removed and bias floated (LK1 removed)
      w/ waveform all worse - attachment 20
      w/o waveform -> p+n worse, n+n similar

18:29 LK1 back on 4+8
      w/ waveform -> poor
      w/0 waveform - recovered previous - attachment 20


18:32 LK 2 and 4 removed from 2 +6
      Also noticed ground lemo on aida02 not fully inserted which has been corrected
      w/ waveform poor - attachment 21
      Threshold 0xF - attachment 22
      w/o waveform - attachment 23
Attachment 1: 220617_1322_stats.png  66 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 2: 220617_1420_stats.png  69 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 3: 220617_11428_stats.png  67 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 4: 220617_1428_layout1.png  95 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 5: 220617_1440_stats_waveform_on.png  66 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 6: 220617_1444_stats_no_waveform.png  74 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 7: 220617_1459_stats_waveform_on.png  67 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 8: 220617_1517_stats_no_waveform.png  67 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 9: 220617_1624_stats_waveform_on.png  67 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 10: 220617_1626_stats_waveform_off.png  68 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 11: 220617_1649_stats_waveform_on.png  68 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 12: 220617_1652_no_waveform.png  68 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 13: 220617_1709_waveform_on.png  69 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 14: 220617_1724_stats_no_waveform.png  65 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 15: 220617_1729_stats_waveform_on.png  68 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 16: 220617_1733_stats_no_waveform.png  66 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 17: 220617_1736_0x21.png  65 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 18: 220617_1738_0x14.png  50 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 19: 220617_1738_0x12.png  69 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 20: 220617_1807_stats_waveform_on.png  67 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 21: 220617_1832_stats_no_waveform.png  66 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 22: 220617_1844_0xf.png  68 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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Attachment 23: 220617_1845_stats_waveform_on.png  67 kB  Uploaded Sat Jun 18 11:06:03 2022  | Hide | Hide all
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