 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 |
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Tue Feb 22 12:01:46 2022, RSS, OF, ML, CB, Beam OFF, Target ON Run 54 9x
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01:00
Beam optimisation since 09:25.
Target ON and open to the ring |
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Tue Feb 22 10:30:00 2022, RSS, OF, ML, Beam OFF, Target ON Run 54 10x
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11:30
Beam optimisation. No beam since 09:25.
Target ON and open to the ring |
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Tue Feb 22 10:06:50 2022, RSS, OF, ML, PMT channel
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| YR00DA1ZB is the channel for PMT rate. |
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Tue Feb 22 09:10:48 2022, OH, Analysis of R54_14
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Results of the fortran analyser programs for R54_14
No timewarps observed in the data
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Tue Feb 22 08:31:25 2022, RSS, OF, ML, Beam OFF, Target ON Run 54 10x
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09:30
Beam optimisation. No beam since 09:25.
Target ON and open to the ring |
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Tue Feb 22 07:27:28 2022, RSS, OF, ML, Beam ON, Target ON Run 54 10x
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08:30
Beam ON ~1.0E7 pps
Target ON and open to the ring |
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Tue Feb 22 06:30:09 2022, RSS, OF, Beam ON, Target ON Run 54 10x
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07:30
Beam ON ~8.0E6 pps
Target ON and open to the ring |
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Tue Feb 22 05:47:18 2022, JM, CB, LV, PM, AK, Beam ON, Target ON Run 54 - 2 events at 10MeV! 11x
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06:47
Beam ON ~2.0E6 pps, still fluctates between 1e6 and 6e6 (like a step function)
Target ON and open to the ring |
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Tue Feb 22 05:12:38 2022, JM, CB, LV, PM, AK, Beam ON, Target ON Run 54 11x
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06:00
Beam ON ~1.5E6 pps, still fluctates between 1e6 and 6e6 (like a step function)
Target ON and open to the ring |
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Tue Feb 22 04:09:28 2022, JM, CB, LV, PM, AK, Beam ON, Target ON Run 54 - first event at 10MeV ! 11x
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05:00
Beam ON ~2E6 pps, still fluctates between 2e6 and 6e6 (like a step function)
Target ON and open to the ring |
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