 Tue Aug 17 12:39:25 2021, NH, TD, AIDA Noise 16x
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Investigate noise situation of AIDA (no DSSSDs connected)
Figs 1-6: Waves, Pulser Peaks + Widths *before* any changes
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Mon Mar 7 12:20:26 2022, NH, TD, AIDA Grounding Checks Mon 7 Mar 14x
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Remove all DSSD ribbon cable braid ground from FEE64s to check n+n ground loops
Removing all on n+n side only and test resistance to ground: 4, 6 and 8 show continuity to ground, 2 shows no connection (braid ring terminal to copper |
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Tue May 31 09:05:00 2022, NH, TD, Tuesday 31 May
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DSSD stack will be as follows
1 3208-7 1019 125 upstream
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 Mon Jul 8 16:02:52 2019, NH, PJCS, Aida 28/6/2019 - WATER OFF
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It occurs to to wonder if there is now water inside the modules. If the metal of the cooling plates is damp on the outside then it is safe to assume
there is water on the inside too . Can I suggest that one of the modules is dismounted, disassembled and checked?
Patrick |
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Wed Feb 19 10:58:29 2020, NH, PJCS, Report: aida09 Kernel Panic & Lost WR
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> aida09 crashed over the weekend and automatically rebooted.
> After the reboot the WR timestamp sent to the merger is in the future and hence incorrect
>
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Thu May 12 16:30:47 2022, NH, OH, TD, Notes for mounting a second switch
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Update DHCPD as expected
Make sure new ethernet device is trusted in firewall
Make sure hosts is updated
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Tue Nov 12 13:59:07 2019, NH, OH, CA, Awfully noisy waveforms 8x
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Rates in all FEEs much higher than before - waveform shows very noisy in all systems. - attachment 1
Good event statistics - attachment 2
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Tue Nov 12 14:10:18 2019, NH, OH, CA, Aida10 Unusual Pulser Peak
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aida10 (no alpha rate recorded) has a strange pulser peak - looks like double peak?
Pulser terminator checked and OK...
All others "OK" but noise quite bad (see previous entry) |
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Wed Oct 20 13:26:08 2021, NH, OH, AIDA Noise + Filtering 6x
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Turn on AIDA (SL6) to investigate noise situation and impact of new RC filters on bias input
Current setup:
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Wed Jun 29 10:48:26 2022, NH, OH, AIDA Dismounted
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All detectors removed from single and triple AIDA snouts
Empty snouts *and* DSSDs (in boxes) stored in NH office |
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Fri Mar 22 07:34:54 2024, NH, JB, Au Beam
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Tue Mar 26 10:32:05 2024, NH, JB, Tue 26 March 9x
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Taken 4 FEE64s from CRYRING (the 4 easiest to access)
41:d8:2b
41:f6:5a
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Fri Apr 9 16:45:29 2021, NH, HA. GA, GZ, OH, TD, AIDA Noise 6x
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AIDA snout was reconnected and we saw originally a very good reduction in noise from S452 (fig 1)
Occasional bursts of increased rates were noticed, perhaps related to works in S4.
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Wed Apr 27 15:47:46 2022, NH, HA, SA, CJ, AIDA 27 Apr 22 7x
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Remount snout in S4 (photos to come)
Alignment with DEGAS OK but a bit short... DEGAS platform will be brought 31 mm closer to AIDA by rail adjustment
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Mon Dec 9 12:28:01 2024, NH, CC, MP, Test of BB7 on AIDA Electronics
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BB7 connected to aida07, sitting in a cardboard box
Update Tcl/Tml files in ASIC, ASIC4 and sys.tml frm PJCS email to allow setting per-ASIC polarity on FEE64
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Wed May 22 20:10:19 2024, NH, CC, HMA, MV, ZC, KZ, AIDA Snout Remounted 9x
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AIDA and the Snout have been remounted in S4
I had a check of the AIDA connectors and all looked good, the kapton PCB connectors were sitting comfortably above the interstage and I saw no stressed/loose |
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Thu Mar 21 15:45:48 2019, NH, AS, SA, MP, Snout Mounting & DSSD Bias
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The AIDA snout (with single DSSD and plastic) has been mounted in S4 cave again. DSSD was connected to the outer 4 FEEs again.
-160 V Bias applied and DSSD holds voltage with leakage current of around 1.3 uA (was dropping as only biased briefly)
Bias off and FEEs offline again now as day nearly done. MBS testing will be performed shortly, as well as resolution checks. |
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Thu Mar 21 15:41:49 2024, NH, AM, MP, CC, Thu Mar 21 6x
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Fig 1-3: Noise situation at real thresholds (0xa p+n, 0xf n+n)
Fig 4-6: After AM and MP turn off Mesytec Preamps
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Fri Mar 22 08:22:43 2024, NH, AM, MP, CC, Thu Mar 21
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> Fig 1-3: Noise situation at real thresholds (0xa p+n, 0xf n+n)
>
> Fig 4-6: After AM and MP turn off Mesytec Preamps
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Wed Apr 10 12:33:58 2019, NH VP, AIDA Firmware Update
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All AIDA modules have been updated to a new firmware 0xd330701 which should fix the merger issues.
A new GSI WR timestamp page has been added to MIDAS - the SYNC rollover is suggested to be 0xe for now.
(VP is working on lowering the rate of WR SYNC infowords) |