 Tue Jul 7 08:04:57 2020, NH, Power failure in Messhuette
|
Last week there was a power failure in Messhuette (FRS control room) - AIDA-3 and MBS were affected.
AIDA itself and S4 equipment is on UPS and was not shut down.
|
|
Tue Jul 7 08:50:27 2020, NH, nnrpi2 does not boot
|
MIDAS was not working properly on nnrpi2 - power cycled. Now system does not boot properly, it gets stuck trying to login claiming "PAM critical error"
- probable file system corruption?
Will investigate if SD card can be checked and repaired |
|
Tue Oct 6 15:48:06 2020, NH, nnrpi kernel update
|
FYI:
The SD card on nnrpi2 was full again causing issues, the log files in /var/log (kern.log & messages) were *huge* and filled with the same error many times |
Tue Nov 24 13:10:42 2020, NH, Waveforms with frame grounded 
|
AIDA Frame is now grounded to platform (will add photo later)
Waveforms improved from April (c.f. https://elog.ph.ed.ac.uk/DESPEC/125) but comparison not truly fair (other systems may be offline now) |
|
Mon Feb 1 15:19:07 2021, NH, AIDA Status Feb 2021
|
01.02.2021 - Four new sets of PSU, HDMI & Ethernet cables were ran from the DESPEC rack to the AIDA frame, in preparation for 4 new FEE64s.
A new 7 port USB hub has also been placed for the last few serial connections.
|
 Sat Feb 6 10:45:55 2021, NH, AIDA Status Feb 2021
|
> 01.02.2021 - Four new sets of PSU, HDMI & Ethernet cables were ran from the DESPEC rack to the AIDA frame, in preparation for 4 new FEE64s.
> A new 7 port USB hub has also been placed for the last few serial connections.
>
|
|
Fri Feb 12 17:31:04 2021, NH, Background run
|
A background run has been started to check the AIDA channels.
It is in /TapeData/BGFEB21
|
|
Mon Feb 22 18:18:47 2021, NH, AIDA Rates/Situation 8x
|
The ground cable (LEMO00) in aida07 was disconnected, it has been reinserted and the waveforms now look good.
(All data below taken with thresholds 0xA for all)
|
|
Sat Feb 27 12:47:57 2021, NH, AIDA Rates/Situation 10x
|
Updated figures as of 27 Feb 2021 - S4 is now closed for experiments but may open on Wednesday.
Snout has been grounded and all FEEs are seemingly grounded properly.
|
|
Thu Mar 4 11:03:04 2021, NH, S452 Operating Notes
|
Please note the following "quirks" currently present in S452 that are important
[B]a) Strips/Thresholds[/B]
|
|
Tue Mar 30 13:21:50 2021, NH, nnrpi1 (tty logs)
|
We had issues with all TTYs reading out on nnrpi1, I have moved them from an apparently faulty USB hub to a new one.
Trying to reboot the pi to detect the new USB ports and it didn't recover from boot
Trying to repair SD card but I get a lot of errors on my laptop, indications are the SD card is completely dead
|
|
Fri Apr 9 16:40:36 2021, NH, nnrpi1 Update
|
nnrpi1 is now back in S4 with a new SD card and new raspberry pi.
The freezing originally continued (it was the USB system failing) but was fixed with a change to /boot/cmdline.txt coherent_pool=4M
It seems the kernel update to fix one bug introduced another...
|
|
Mon Apr 12 18:36:31 2021, NH, [HowTo] AIDA & MBS
|
Some instructions on AIDA and MBS and troubleshooting are available here
https://sf.gsi.de/lib/c9ba0b4c-26bc-43d0-9b49-213fc594610f/file/AIDA%20and%20MBS%20Tips%20and%20Troubleshooting.pdf |
|
Thu Apr 15 12:23:22 2021, NH, Fast Discriminator Masks
|
It is possible to get good rates with the fast discriminators with a few hot channels mask in aida03 and aida10
Threshold is 0x20 = 3.2 MeV
|
|
Fri Apr 16 02:15:12 2021, NH, Implants/Punchthrough
|
Rate with beam < 1000 Hz still
Not Uranium but some fragments possibly produced in the thick 9g degrader
|
|
Sat Apr 24 10:21:06 2021, NH, Saturday 24.04.2021
|
I have restarted some more of the consoles that disappeared since the aidas-gsi issue last night
Grafana is working again
|
|
Wed Apr 28 10:06:11 2021, NH, Wednesday 28 April
|
11.05 All system wide checks OK *except*
WR
|
|
Tue May 4 14:05:48 2021, NH, MACB Cables
|
During the installation of the 4 new HDMI cables for aidas13-16 the HDMI cables between the MACB Root and the MACB leaves were looped through the cable
guide at the top to support them more
This may improve their connection and reduce the chance of WR errors seen in S460/S452
|
|
Tue May 4 14:26:50 2021, NH, FEE64 Adapter wiring diagram and layout
|
A figure showing the FEE64 numbers (a previous diagram had 2/6 and 4/8 on the wrong side of the DSSD) and the wiring of pulser/HV
Also the jumpers connected to the boards
|
|
Fri May 7 13:11:22 2021, NH, Friday 7th May
|
14:11 - Alpha has been running most of morning
Just saw rates in tape spike to 6 MB/s...
|