 Mon Jan 20 14:01:23 2020, NH, AIDA Noise 20.01.2019 6x
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> Checking noise
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> DESPEC crate entirely offline except:
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 Fri Feb 14 12:50:29 2020, NH, AIDA Noise 14.02.2020 6x
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Electricians changed the grounding for the DESPEC platform to a large pillar that goes deep into soil
Change in grounding was apparently successful at reducing the noise complaints in Cave C (R3B)
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Wed Jan 15 14:53:41 2020, NH, AIDA Noise 14.01.2019 6x
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Checking noise
DESPEC crate entirely offline except:
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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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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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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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Thu Aug 19 10:37:50 2021, TD, AIDA Noise
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11:30 BNC PB-5 pulser polarity chnaged from positive to negative (using LOCAL control)
Swap BNC cables (top + bottom & left + right) from BNC PB-5 and Cooknell SA1 Sum Amp outputs
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Fri Aug 20 14:33:24 2021, TD, AIDA Noise 6x
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>
> 11:30 BNC PB-5 pulser polarity chnaged from positive to negative (using LOCAL control)
> Swap BNC cables (top + bottom & left + right) from BNC PB-5 and Cooknell SA1 Sum Amp outputs
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Sun Aug 22 18:40:08 2021, TD, AIDA Noise
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> >
> > 11:30 BNC PB-5 pulser polarity chnaged from positive to negative (using LOCAL control)
> > Swap BNC cables (top + bottom & left + right) from BNC PB-5 and Cooknell SA1 Sum Amp outputs
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Mon Sep 16 12:24:46 2019, NH, AIDA Monitoring
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https://docs.google.com/spreadsheets/d/1fZBybHodSvacUdKpDM_VKznqTrh49CKnqKVQVMEDWGs/edit?usp=sharing
A spreadsheet of ambient conditions and water temperature in S4 for AIDA.
Will show the distance to danger points (interlock shutdown and condensation on the pipes) |
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Tue Jun 4 09:19:10 2019, NH, AIDA Interlock
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Currently AIDA's interlock is off (no lights) and hence AIDA cannot be powered on. Under investigation - power supply has been replugged but seems
ok.
Update: It seems the interlock is correctly stopping AIDA from being powered on due to high humidity on the cooling lines. Am currently trying |
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Tue Mar 10 10:16:56 2020, OH, AIDA Implant Range Scan
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A range scan was performed using AIDA.
See the GSI elog: https://elog.gsi.de/despec/S480/19 |
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Thu Mar 7 15:15:29 2024, JB, NH, CC, AIDA HV Bias Test IV Curve
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AIDA I-V Test
Voltage (V)
Current
(uA)
10
1.43
20
2.065
30
2.415
40
2.64
50
2.825
60
2.99
70
3.185
80
3.58
90
5.01
100
9.4
-
Voltage-Current test of newly installed AIDA snout. Breakdown observed at around ~92 V. Probably caused my light leakage into the snout, will investigate |
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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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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) |
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Sat Apr 24 13:25:23 2021, NH, TD, AIDA FEE64 crash log for S460
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https://docs.google.com/spreadsheets/d/1CyL5L-WLsh9fsS7CN989GC3ktqiPQOkG8YIDJrrGxYA/edit#gid=0 |
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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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Sun Mar 10 17:08:12 2024, NH, AIDA FEE Layout + Cabling Plan for S100
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Proposed FEE numbering and wiring plan for upcoming experiment S100 (2x Wide DSSSDs)
Image designed in draw.io, source attached
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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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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 |