| ID |
Date |
Author |
Subject |
|
259
|
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
|
|
258
|
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 |
|
257
|
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 |
|
256
|
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 |
|
255
|
Wed Feb 23 09:50:19 2022 |
Laszlo, Thanassis | Moving detector in |
We are moving the detector in run 56 |
|
254
|
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 |
|
253
|
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 |
|
252
|
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 |
|
251
|
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 |
|
250
|
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 |
|
249
|
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. |
|
248
|
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 |
|
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. |
|
246
|
Wed Feb 23 00:54:17 2022 |
Jordan, George | Current status |
02:04
Temps OK
Data Rate - ~1.1Mb/s
System Check OK
White rabbit diff - 83
Leakage Current - ~3.475uA
YR09 AVG: 7.51E-10mbar
YR10AVG: 1.21E-10mbar
YR07AVG: 1.67E-9mbar
YR08AVG: 1.91E-9mbar |
|
245
|
Tue Feb 22 21:57:13 2022 |
George, Jordan | Current status |
23:53
Temperatures OK
System checks OK - white rabbit fail diff ~ 80
Pressures stable
Cryo temp = 129.2 K setpoint
Data rate ~1.2 MB/s
Leakage current ~ 3.47 uA
00:53
YR10 avg = 1.29E-10 mbar
YR09 avg = 8.7E-10 mbar
YR04 avg = 1.13E-11 mbar
YR07 avg = 1.76E-10 mbar
YR08 avg = 2.18E-9 mbar
Data rate ~ 1.1 Mb/s
Temperatures OK
system checks OK - white rabbit fail diff ~ 80
Pressure stable, cryostat temp setpoint = 129.2k
Leakage current = 3.47 uA
Beam intensity reads ~ 2.6-3E7 |
|
244
|
Tue Feb 22 21:09:39 2022 |
David, Yuri | Current status |
Pressure seems as before 19:10.
Merger, Tape server (WS3) checks: DONE, writing ~1 MB/s, refreshing is fine
Leakage current (WS4): 3.47 uA , stable current
DAQ (WS2): temperature checked, clock status:ok, adc calibration:ok, white rabbit check:ok
DAQ (WS2): everything ok
Online monitoring (WS 5): done |
|
243
|
Tue Feb 22 20:08:40 2022 |
David, Yuri | Current status |
Recently the pressure started to raise a bit, we have increased the temperature from 129.1 K to 129.2 K. Current pressure at S1 2.10e-7.
Merger, Tape server (WS3) checks: DONE, writing ~1 MB/s, refreshing is fine
Leakage current (WS4): 3.46 uA , stable current
DAQ (WS2): temperature checked, clock status:ok, adc calibration:ok, white rabbit check:ok
DAQ (WS2): everything ok
Online monitoring (WS 5): done |
|
242
|
Tue Feb 22 19:28:35 2022 |
David, Yuri | vacuum |
At 19:10 Frank called us that vacuum in sections 08 and 10 got worse by about 1.5 times. There is a possible danger that vacuum valves can get closed if rest gas pressure is above the set treshhold.
Nikos warmed the cryostat by 0.5 degrees from 129.0 K to 129.5 K and the pressure became better than before. We cooled the system in steps of 0.1 degress down to 129.1 K and again observed the pressure rise.
We think we can stay with the present conditions. However, the pressure shall be monitored not to hit the treshhold. |
|
241
|
Tue Feb 22 19:11:18 2022 |
David | Current status |
Still trying to recover previous pressures, more details in the next entry.
Merger, Tape server (WS3) checks: DONE, writing ~1030 kB/s, refreshing is fine
Leakage current (WS4): 3.46 uA , stable current
DAQ (WS2): temperature checked,
DAQ (WS2): everything ok
Online monitoring (WS 5): done; |
|
240
|
Tue Feb 22 18:23:02 2022 |
David. Yury | Vacuum problem |
At 19:10 the vacuum has increased suddenly everywhere in the ring, roughly a factor 1.5. |