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ID |
Date |
Author |
Subject |
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266
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Thu Feb 24 07:25:53 2022 |
OH (Remote) | Recover of system after crash |
08:00 Woke up to message from Carlo explaining the server had crashed.
Anydesked into the machine.
Merger was showing just data transfer it was not showing Transfer => Merger
Went through the steps detailed in https://elog.ph.ed.ac.uk/DESPEC/36 to recover it.
After following these steps was again able to forward data from the merger.
Tested and it now sends on data again.
Setup the screen session for the caen bias and restarted the logger program.
Restarted the gnuplot script to plot leakage current
Started the online monitoring software and browser.
Have posted in the chat that the DAQ is now running again. |
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265
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Thu Feb 24 05:09:47 2022 |
CB, PE, EM | Inlet valve at target closed + problems with turbopump |
The turbo pump E1 is continuing to draw too much current and the rotation frequency has steadily decreased from 817 Hz at the beginning of the night shift to 800 Hz now. The frequency recovered after the temperature was increased.
Both of the valves (inlet and dump) have been closed to improve the vacuum in the ring. |
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264
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Thu Feb 24 04:17:35 2022 |
CB, TD (remotely) | MIDAS DAQ no longer working |
DAQ server crashed around 24:00
Rebooted server but could not could not rescue remotely - could not contact raspberry pi in control of FEE bias.
Entered cave, rebooted raspberry pi. Would not accept remote connections.
Had to manually start DHCP service on carme-gsi using
systemctl start dhcpd
Raspi could then be connected.
Started DAQ, TapeServer and Merger as per usual. Tapeserver refuses writing to disk.
Checked merged - very odd timestamp situation. See attached. Timestamp look OK in the GSI WR tab. See attached.
Power cycled server and FEES
Timestamp issue solved. All are now reading 0x16 etc.
However tapeserver still does not write to disk. Reasons unclear. Possibly Merger is not merging and not passing data on?
Have to stop data collection until solved.
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263
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Wed Feb 23 22:29:50 2022 |
PE, EM, CB (remotely) | check - 23:30 |
Motor position ok
Data rate: 1030kbytes/s
T ok
System wide check ok
plots uploaded
DAQ crashed soon afterwards |
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262
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Wed Feb 23 21:27:29 2022 |
TD, CN | check |
Motor position ok
Data rate: 1030kbytes/s
T ok
System wide check ok
plots uploaded
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261
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Wed Feb 23 20:52:56 2022 |
CN, TD | System wide checks |
Attachments 1-5 aida01-aida05 options
System wide checks
Attachment 6 - changes to options files - differences reported but none observed (attachments 1-5)
Attachment 7 - collect memory info from FEE64 Linux
Attachment 8 - collect FPGA timestamp errors
Attachment 9 - WR decoder status
Attachment 10 - ADC calibration
Attachment 11 - Clock status |
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260
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Wed Feb 23 20:06:43 2022 |
TD CN | E141 kinematics |
Assuming DSSSD is 1000um thick we can expect to observe protons for E_lab=11MeV as follows
14N(d,p)15N(gs) E_p=5.4MeV
14N(d,p)15N(5.3) E_p=8.0MeV |
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259
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Wed Feb 23 19:22:55 2022 |
CN, TD | check |
- Motor checked , OK
SW3
- Merger OK
- Screenshot uploaded
- Data rate : 755 kbytes/s
SW4
- current plot uploaded
SW2
- T OK
- system wide check OK
- Statistics ok
- Spectra ok
SW5
4 plots uploaded
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258
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Wed Feb 23 18:58:12 2022 |
TD CN | Wednesday 23 February 15.00-23.00 shift |
Assorted screenshots of the CARME, CRYRING and gas jet target control systems in operation
Attachment 1 - detector motion controls
Attachment 2 - gas jet target pressures (blue proxy for target density, red proxy for gas load to CRYRING)
Attachment 3 - Schottky probe monitor of beam
Attachment 4 - CRYRING controls monitor
Attachment 5 - CRYRING vacuum pressures
Attachment 6 - CRYRING beam position and profile monitor |
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257
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Wed Feb 23 16:57:35 2022 |
CB, CN | Optimising motor motion |
Optimised motor motion during run R58
Moved 2 mm in (20.3 potentiometer)
29.47 potentiometer
36.5 potentiometer
(started moving pneumatic)
64.36 potentiometer
74.03 potentiomater (servo in by 10 mm)
Moved in, collected counts for 5 minutes, moved out, waited for re-injection.
20.3 - 400 counts on the Rutherford peak, bins 125-131 on lowEnergyExTotalDSSD0
20.47 - 646
36.5 - 827
64.36 - 3900
74.03 - 10040
Based on Rutherford rate ratio, estimated we are 40-50 mm away from interaction point, i.e. beam roughly 1-2 cm on outer half of ring which may be consistent with BPM measurement in YR08
Decided to use 74.03 mm for data collection.
Started data acquisition on R59 at 17:27
Beam 3E7 at injection, 600 second storage, 3 second between cycles
Target pressure 1.3E12 based on 8.21E18 x S1=1.6E-8 |
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256
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Wed Feb 23 10:56:06 2022 |
Laszlo, Thanassis | Current status |
11:55
Temps OK
System Check OK
White Rabbit fail diff: 102
Write Speed: ~1.2Mb/s
Leakage Current: ~3.47uA
Cryo Temp = 129.2K setpoint (unchanged)
Pressures stable
AVG Pressures:
YR07: 1.99e-10mbar
YR08: 2.6e-9mbar
YR09: 1.03e-9mbar
YR10: 1.7e-10mbar |
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255
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Wed Feb 23 09:50:19 2022 |
Laszlo, Thanassis | Moving detector in |
We are moving the detector in run 56 |
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254
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Wed Feb 23 08:58:30 2022 |
Laszlo, Thanassis | Current status |
10:00
Temps OK
System Check OK
White Rabbit fail diff: 102
Write Speed: ~1.2Mb/s
Leakage Current: ~3.47uA
Cryo Temp = 129.2K setpoint (unchanged)
Pressures stable
AVG Pressures:
YR07: 1.93e-10mbar
YR08: 2.64e-9mbar
YR09: 1.13e-9mbar
YR10: 1.55e-10mbar |
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253
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Wed Feb 23 07:58:38 2022 |
Laszlo, Thanassis | Current status |
09:00
Temps OK
System Check OK
White Rabbit fail diff: 101
Write Speed: ~1.2Mb/s
Leakage Current: ~3.47uA
Cryo Temp = 129.2K setpoint (unchanged)
Pressures stable
AVG Pressures:
YR07: 1.88e-10mbar
YR08: 2.28e-9mbar
YR09: 9.15e-10mbar
YR10: 1.52e-10mbar |
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252
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Wed Feb 23 06:58:19 2022 |
Laszlo, Thanassis | Current status |
08:00
Temps OK
System Check OK
White Rabbit fail diff: 99
Write Speed: ~1.0Mb/s
Leakage Current: ~3.47uA
Cryo Temp = 129.2K setpoint (unchanged)
Pressures stable
AVG Pressures:
YR07: 2.06e-10mbar
YR08: 2.71e-9mbar
YR09: 1.06e-9mbar (up from previous check)
YR10: 1.78e-10mbar |
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251
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Wed Feb 23 06:00:25 2022 |
Jordan, George | Current status |
07:00
Pressure Stable
Temps OK
System Check OK
White Rabbit fail diff: 90
Write speed: ~1Mb/s
Leakage Current: 3.47uA
Cryo Temp Setpoint: 129.2K (unchanged)
AVG Pressures:
YR07: 1.66e-10mbar
YR08: 1.93e-9mbar
YR09: 7.63e-10mbar
YR10: 1.26e-10mbar |
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250
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Wed Feb 23 04:55:48 2022 |
Jordan, George | Current status |
05:55
Temps OK
System Check OK
White Rabbit fail diff: 90
Write Speed: ~1.0Mb/s
Leakage Current: ~3.47uA
Cryo Temp = 129.2K setpoint (unchanged)
Pressures stable
AVG Pressures:
YR07: 1.79e-10mbar
YR08: 2.21e-9mbar
YR09: 8.64e-10mbar
YR10: 1.36e-10mbar |
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249
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Wed Feb 23 03:52:13 2022 |
Jordan, George | Current status |
04:52
Pressure seems to be climbing a little but still stable (just peaked at end of check)
Temps OK
Write Speed: ~1.0Mb/s
System Checks OK
White Rabbit fail diff: 90
Leakage Current: 3.47uA
Cryo Temp: 129.2K (unchanged)
AVG Pressures:
YR07: 1.79e-10mbar
YR08: 2.3e-9mbar
YR09: 9.46e-10mbar
YR10: 1.41e10mbar
Avg pressures plots for last hour and last 6 hours attached. |
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248
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Wed Feb 23 02:52:09 2022 |
Jordan, George | Current status |
03:52
Temps OK
System Checks OK
White rabbit diff: 90
Data rate: 1.2Mb/s
Leakage Current: 3.474uA
Cryo temp = 129.2K (unchanged)
Pressures stable
AVG Pressures:
YR07: 1.74e-10mbar
YR08: 2.15e-9mbar
YR09: 8.61e-10mbar
YR10: 1.32e-10mbar |
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247
|
Wed Feb 23 01:56:59 2022 |
Jordan, George | Current status |
02:56
Temps OK
write speed ~1.2Mb/s
System check OK
White rabbit diff - 89
Leakage Current ~3.472uA
Pressures stable
Beam intensity ~3.0e7
cryostat setpoint 129.2K (unchanged)
AVG Pressures:
YR09: 8.48e-10mbar
YR10: 1.28e-10mbar
YR07: 1.71e-10mbar
YR08: 2.1e-9mbar
Aida 1 1*L plot attached. Some channels appear missing. Width of rutherford peaks ~280-300 channels. |