 Wed Feb 23 09:50:19 2022, Laszlo, Thanassis, Moving detector in
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| We are moving the detector in run 56 |
Wed Feb 23 08:58:30 2022, Laszlo, Thanassis, Current status 10x
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10:00
Temps OK
System Check OK |
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Wed Feb 23 07:58:38 2022, Laszlo, Thanassis, Current status 10x
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09:00
Temps OK
System Check OK |
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Wed Feb 23 06:58:19 2022, Laszlo, Thanassis, Current status 11x
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08:00
Temps OK
System Check OK |
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Wed Feb 23 06:00:25 2022, Jordan, George, Current status
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07:00
Pressure Stable
Temps OK |
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Wed Feb 23 04:55:48 2022, Jordan, George, Current status
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05:55
Temps OK
System Check OK |
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Wed Feb 23 03:52:13 2022, Jordan, George, Current status
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04:52
Pressure seems to be climbing a little but still stable (just peaked at end of check)
Temps OK |
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Wed Feb 23 02:52:09 2022, Jordan, George, Current status
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03:52
Temps OK
System Checks OK |
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Wed Feb 23 01:56:59 2022, Jordan, George, Current status
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02:56
Temps OK
write speed ~1.2Mb/s |
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Wed Feb 23 00:54:17 2022, Jordan, George, Current status
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02:04
Temps OK
Data Rate - ~1.1Mb/s |
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Tue Feb 22 21:57:13 2022, George, Jordan, Current status
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23:53
Temperatures OK
System checks OK - white rabbit fail diff ~ 80 |
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Tue Feb 22 21:09:39 2022, David, Yuri, Current status
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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 |
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Tue Feb 22 20:08:40 2022, David, Yuri, Current status
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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 |
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Tue Feb 22 19:28:35 2022, David, Yuri, vacuum
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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 |
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Tue Feb 22 19:11:18 2022, David, Current status
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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 |
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Tue Feb 22 18:23:02 2022, David. Yury, Vacuum problem
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| At 19:10 the vacuum has increased suddenly everywhere in the ring, roughly a factor 1.5. |
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Tue Feb 22 17:32:38 2022, David, Current status 12x
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Michael is modifying the settings of the electron cooler --> changed beam from bunched to coasting
Merger, Tape server (WS3) checks: DONE, writing ~1036 kB/s, refreshing is fine
Leakage current (WS4): 3.46 uA , stable current |
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Tue Feb 22 16:09:08 2022, David, Yury, Current status 12x
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Merger, Tape server (WS3) checks: DONE, writing ~1 1273kB/s, refreshing is fine
Leakage current (WS4): 3.46 uA , stable current
DAQ (WS2): temperature checked, |
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Tue Feb 22 14:32:04 2022, David, Yury, Current status 12x
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Merger, Tape server (WS3) checks: DONE, writing ~1 MB/s, refreshing is fine
Leakage current (WS4): 3.48 uA , stable current
DAQ (WS2): temperature checked, |
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Tue Feb 22 12:23:23 2022, CB, Slow comparator thresholds lowered - test run
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13:20 Stopped run.
Slow comp thresh 0x64 -> 0x32 on all FEEs
Checkload x2 |