 Thu Jan 7 13:55:24 2016, CG, RIKEN progress - 15/12/15 (late) 
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Tues 15/12/15
Swapped previously tripped detector (3131-11) on to kaptons already in place for (working) 2977-15 and attempted to bias
- i.e. made no changes (FEEs, or jumpers etc) to the known working setup of 2977-15, just replaced the detector with 3131-11 |
 Thu Jan 7 16:04:44 2016, CG, PJCS, PCS Reply to RIKEN progress - 15/12/15 (late)
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Quote:
Tues 15/12/15 |
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Thu Dec 3 10:12:08 2015, CG, TD, Report: Low - RPi power cable can't be fully inserted due to case conflict
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The RPi power cable cannot sit fully in the connector, and the lock pins can't engage, because the case gets in the way of the plastic around the end.
As a result we have knocked it out a couple of times and lost power to the system.
Can this be modified or can we get a new case/cable that resolves this issue? |
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Wed Jan 6 16:06:32 2016, CG, TD, PJCS, Report: Low - RPi power cable can't be fully inserted due to case conflict - solved
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Quote:
The RPi power cable cannot sit fully in the connector, and the lock pins can't engage, because the case gets in the way of the plastic around |
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Tue Dec 15 11:17:05 2015, TD, STFC DL tests - 14-15.12.15 13x
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BNC PB-5 Pulser
Fall time 1.0ms
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Mon Dec 14 19:25:35 2015, AE, CG ,Phong, Merger/TapeServer trouble report
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Sat. 12/12/15
Working with a 8-FEE setup (as in https://elog.ph.ed.ac.uk/AIDA/133). We could open a file with the
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Mon Dec 14 07:56:27 2015, CG, RIKEN progress 10x
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13/12/15
Current jumper setup:
- detector 2977-15 connected to nnaida1,3,5,8 with GND kapton to nnaida1 |
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Sat Dec 12 03:30:50 2015, Alfred, Chris, Phong, change configuration of NNAIDA modules in setup
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We want to reduce the configuration of the setup to 4 FEE cards (8 NNAIDA modules), so we only have to isolate 4 of them from the cooling crate for a
noise test. Following instructions in April2015 test logbook.
Copied directory /MIDAS@aidas to /MIDAS@aidas.121215 |
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Sat Dec 12 02:12:17 2015, CG, AE, VH, RIKEN progress 9x
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Stripped down contents of AIDA NIM bins to only what is required by AIDA.
Now have BNC PB-5 pulser, sum and invert module, single and quad Caen HV supplies in the top crate and the MACBs in the bottom crate.
Removed were FIFO, leading edge discriminator and a quad coincidence module, all used in the DAQ integration. |
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Thu Dec 10 04:56:08 2015, CG, AE, RIKEN progress - first day and a half
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08/12/15 - Day 0.5
Test fitted new snout to snout base
- the holes in the base of the just-shipped section all line up with those in the corresponding part just taken off. |
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Thu Dec 3 16:28:46 2015, CG, TD, New Kapton cable tests at DL 18x
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Spent whole day trying to isolate mezzanines from cooling crate.
Finally managed to increase resistance between crate and mezzanines from ~5 Ohms to ~380 kOhms with some masking tape and parcel tape over the
slots in the FEE modules in which rest the guide pins on the bottom of cooling crate. |
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Wed Dec 2 18:39:44 2015, CG, New Kapton cable tests at DL
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Powered on system ok.
Electrical connection between crate and mezzanines still persists, but only to the top cool plate (no connection to the bottom or sides), eith
resistance ~5-10 ohms |
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Thu Nov 26 16:32:52 2015, CG, TD, New Kapton cable tests at DL 9x
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Powered on system without issue. biased detector to -200V. Leakage current not stable, bouncing around between ~3.66 - 3.74uA. Room temp 22.0oC
-> Peak widths similar to yesterday.
Changed through various permutations of jumper connections (field planes, detector grounds, bias ground reference). |
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Wed Nov 25 19:24:39 2015, CG, TD, PJCS, New Kapton cable tests at DL 6x
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Powered system on and biased to +200V at room temp of 22.4oC. Leakage current of 3.37uA.
Waveforms very noisy and spectra dominated by low E noise. Upon taking a close look at front end found one of the kaptons to have broken a connection.
Swapped it out for a spare. |
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Fri Nov 20 16:29:49 2015, CG, New Kapton cable tests at DL
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Powered system up from state it was left in last night. Biased to +200V with leakage current 3.9uA @ room temp 23.3oC.
nnaida14 now performing as it was at the beginning of yesterday, with nnaida11 back to having noisy waveforms.
Tried various combinations of grounding to ascertain minimum possible configuration to maintain (or improve) current performance. |
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Thu Nov 19 17:31:24 2015, CG, TD, New Kapton cable tests at DL
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Powered system on from the state it was in last night. Biased to +200V with leakage current 3.9uA at room temp 22.8oC.
Performance of nnaida14 at shaping time of 8us slightly worse than last night - peak now non-Gaussian and double peaked. New source of noise?
Trying different permutations of grounding options initially led to no improvements. |
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Thu Nov 19 12:23:03 2015, CG, TD, Report: Low - Error message when selecting Act on all FEE64s for FADC calibrate
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When trying to calibrate FADCs in FADC Align and Control page, ticked 'Act on ALL FEE64 modules'.
Error message displayed (attachment 1) and, despite 'Act on ALL' box being ticked, was only able to act on one FEE64 at a time. |
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Thu Nov 19 12:19:15 2015, CG, TD, Report: Low - nnaida12 ASIC4 not functioning
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Current nnaida12 (MAC address 2b:09:e8) has several noisy channels in ASICs 1-3, whilst ASIC4 does not work at all.
Frequently, but not always, ASIC4 fails to load/check.
Additionally, fast discriminators are turned off in settings but show activity in the Hit spectrum. |
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Wed Nov 18 18:18:26 2015, CG, TD, New Kapton cable tests at DL
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Note: kapton #7 may have broken pins next to (deliberately) broken ground pin. Unclear, but should not be used for bias until certain.
Detector BB18 2998-22 connected via 4 45cm kaptons and biased to +200V via nnaida12+14, with leakage current 4.310uA @ room temp 25.4oC.
Turned off FADCs as per PCS instructions in previous entry - no change. Turned back on. |
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Fri Nov 13 16:17:14 2015, CG, TD, 13 Nov 2015 - new Kapton cable tests at DL 6x
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Powered system up with 4 bare 45cm kaptons connected and nothing seems to have changed from where we left last night
Waveforms in nnaida11 look good and peak widths in nnaida11 1.8.L and 1.10.L are ~70ch.
Turned off flash ADCs for all FEEs by setting Q8_transfer.vhd: 0xa00, offset 0x00, to 0 to assess any affect they may play in the observed noise |
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Sat Nov 14 20:19:43 2015, CG, TD, PJCS, 13 Nov 2015 - new Kapton cable tests at DL
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Quote:
Powered system up with 4 bare 45cm kaptons connected and nothing seems to have changed from where we left last night |
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Thu Nov 12 18:28:41 2015, CG, TD, 12 Nov 2015 - new Kapton cable tests at DL 23x
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This morning PC-S changed firmware and DAQ software to that of the RIKEN setup
Firmware version /MIDAS/AIDA/FEE_Riken_Apr14_26.bin
DAQ software has been changed from AidaExecV8 to AidaExecV7 |
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Wed Nov 11 17:36:19 2015, CG, TD, 11 Nov 2015 - new Kapton cable tests at DL 18x
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Upon starting system with nothing connected beyond adapter PCBs, observed pulser peak FWHM of ~12-15ch in nnaida13+14 and ~15-18ch in nnaida11+12
All newly shielded new kapton cables passed continuity tests between drain wire and Cu tape.
Throughout all tests, grounded cable has been connected to nnaida13. All other nnaida have ground isolated cables. |