 Mon May 10 11:45:15 2021, NH, Confusing behaviour of rates
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Testing the behaviour of powering down the fast ADCs in aida01 (the hot FEE)
Set local control 2 to 0xff in aida01
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Wed May 19 20:02:27 2021, NH, AIDA Dead Time Analysis 6x
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Some plots of AIDA dead time (From PAUSE/RESUME data items) against time.
The histograms are binned in intervals of 100 ms, with the blue bars corresponding to dead time in the FEE - the y-value is the percent of the 100ms interval |
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Mon Jun 21 10:21:50 2021, NH, Monday 21 June 8x
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11.21 - DAQ continues OK (no storage mode)
11.21 - System checks ok *except*
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Tue Jun 22 13:01:19 2021, NH, AIDA Data on lustre
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The following runs are now copied to lustre
If necessary they can be removed from AIDA HDDs for space.
There are also spare HDDs that can (and should) be swapped for the current ones
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Mon Jul 5 14:36:15 2021, NH, Monday 5 July
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AIDA Unbiased and powered down
All FEEs were running before stoppage. None had rebooted.
Aida05 did not respond until merger was restarted, all other DAQs responded fine.
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 Tue Oct 26 16:08:46 2021, NH, FEE and Adaptor board groundings
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> During investigations into the noise today by NH and OH a couple of findings were made on the grounding of the FEEs and Adaptor boards.
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> - The adaptor boards have no connection to the FEE ground over the ERNI connector
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Fri Oct 29 23:00:04 2021, NH, Ground cable information
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For future refinement of the AIDA ground cables using copper bus bar or similar:
Thin cable (from AIDA FEEs to common connection point)
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Tue Feb 1 15:00:28 2022, NH, AIDA CentOS 7 Startup
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Starting up AIDA on CentOS 7 to confirm things work (based on some CARME experience)
NFS settings:
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Fri Feb 11 12:09:24 2022, NH, Fri 11 Feb AIDA Work
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Use beam break between FRS experiments to finalise getting AIDA testable for PJCS etc.
USB hubs reconnected - all 16 ttyUSBs seem to be visible now
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Thu Apr 28 18:45:09 2022, NH, Alpha Background Run
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Runs are in /TapeData/BGAPR22 located on 8TB disk "SecondDrive" (N.B. 2A experiment is using ThirdDrive)
Old runs and test files were removed from disk. Left is an unknown S481 folder (fibre implant test?) and Patrick
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Mon May 2 13:08:49 2022, NH, AIDA Updates 2 May
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The snout endcap has been sealed with new copper tape over the red tape
Observe significant drop in leakage current on DSSD #2 down to 7 uA (about 0.5 uA above DSSD #1) as it looked when the black cloth was on
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Tue May 3 14:15:17 2022, NH, AIDA Updates 2 May
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PAUSE/RESUME stats are dominated by 2x FEE64s - aida07 and aida16
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Wed May 4 16:50:04 2022, NH, AIDA 4th May
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bPlas has been mostly cabled in now
Reseat LAN cable (AIDA Switch -> AIDA-3) and reachieve 1 gbit/s speed as needed.
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Sun May 8 17:43:57 2022, NH, AIDA FEE64 Layout
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| AIDA FEE64 layout with respect to the beam. |
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Tue May 24 08:35:00 2022, NH, Tue 24 May
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09:00 - Remove bias of DSSDs and pwoer of FEEs
Remove snout from S4 so DEGAS frame can be mechnically removed
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Wed May 25 14:28:26 2022, NH, Wed 25 May
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The n+n FEEs were all removed to adjust the platform back to the single configuration
After some confusion we found the orientation of the frame to position the single detectors and moved back
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Wed Jun 8 09:55:28 2022, NH, Weds 8 May
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10.30 : Turn off AIDA FEE64s
Prepare a ground cable for snout - M10 terminal on one end for copper bar. Will affix with Cu tape for now (no free screws)
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Fri Jun 10 10:32:46 2022, NH, Fri 10 Jun 8x
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Probe PSU output with 'scope again and 10X probe
Use a AC mains scope as was available, means referenced to ground of AC, but should be ground of platform (and hence Fee64)
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Mon Jun 13 16:38:37 2022, NH, Mon 13 Jun
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Remove Caen HV Supply
Open up, C23 was grounded (HV grounded in NIM)
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Tue Jun 14 12:15:33 2022, NH, S450 Archived
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| All MIDAS files for S450 (/TapeData/S450) have been copied to lustre and archived |