 Thu Mar 9 05:19:33 2023, WP, Runs, , General, General
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run control = 50
run data = /onlineNEDA_00/xData/hil099/run_0050_09-03-2023_00h50m28s/needleRU_i50_0050_0028.caendat
RU = 7.15 MB/s
LF = 3.68 MB/s
plunger:
plunger run = 779
actual distance = 533.1 um
supposed distance = 532.7 um
micrometer = 533.4 um
position = 299.6 um
voltage = 1.66 V
Beam dump: 1-1.5 enA (oscillating)
Colimator : 0.6 enA
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Thu Mar 9 06:24:10 2023, WP, Runs, , General, General
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run control = 50
run data = /onlineNEDA_00/xData/hil099/run_0050_09-03-2023_00h50m28s/needleRU_i50_0050_0035.caendat
RU = 7.39 MB/s
LF = 3.60 MB/s
plunger:
plunger run = 790
actual distance = 532.8 um
supposed distance = 532.7 um
micrometer = 533.6 um
position = 300.1 um
voltage = 1.657 V
Beam dump: 1-1.5 enA (oscillating)
Colimator : 0.6 enA
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Thu Mar 9 07:28:59 2023, WP, Runs, , General, General
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run control = 50
run data = /onlineNEDA_00/xData/hil099/run_0050_09-03-2023_00h50m28s/needleRU_i50_0050_0042.caendat
RU = 7.20 MB/s
LF = 3.54 MB/s
plunger:
plunger run = 801
actual distance = 533.2 um
supposed distance = 532.7 um
micrometer = 533.6 um
position = 300.7 um
voltage = 1.66 V
Beam dump: 1-1.5 enA (oscillating)
Colimator : 0.6 enA
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Fri Mar 3 20:50:31 2023, IK, MP, GJ, Other, , Data analysis, Ge spectra 
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Ge rates increasing, similar to what it was 24h before. Asking to decrease beam intensity by a factor of 2.
Attached Ge spectra before decreasing.
Before decreas beam current was 1.75enA, afterwards 1.1enA. |
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Wed Mar 8 10:27:26 2023, IK, BS, Other, , General, Ge spectra
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Count rates are still a bit high (~2.6kHz for EAGLE det4). Ge spectra looks fine compared to earlier ones.
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Wed Mar 8 13:04:05 2023, IK, Runs, , General, Ge spectra
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Ge spectra after #161 - #162 beam tuning. |
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Fri Mar 10 16:14:19 2023, IP, Other, , General, Ge - the rate is higher
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From 13:00 the rate of the Ge [the chanel 4] is a bit higher (~2.15 kHz). And also the rate of other detectors.
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 Fri Mar 10 22:40:00 2023, IP, Other, , General, Ge - the rate is higher
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the rates of detectors are still a bit higher
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From 13:00 the rate of the Ge [the chanel 4] is a bit higher (~2.15 kHz). And also the rate of other detectors.
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Tue Mar 7 14:03:20 2023, BS, Runs, , General, Counting Rates
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Thu Mar 2 23:04:01 2023, GJ, Problem Fixed, , Hardware, Connection of the plunger cables, grounding, beam read-out for the operators
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Notes of the measurements with different conditions are attached.
Conclusion:
What is read out by the operators on the blue cable should be multiplied by 7 to get a real value in enA. |
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Sat Mar 11 11:39:55 2023, EG, Problems, , , Buffers clearing
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at 11:34:50 sek on 11 march a spike in counting rate of some Ge detectors is observed. Buffers not cleared properly?
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Fri Mar 3 19:41:27 2023, IK, Problems, , Hardware, Beamdump readout issue Vol.2.
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Issue described in #61 continues to persist.
Beam stopped from 19:20 to 19:32, run 36 ongoing; MP, GJ, BS entering the experimental hall.
They changed the position of the grounding point on the chamber, moving it downstream after a fitting/joining part (A to B on the attached picture [artist: GJ]).
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Fri Mar 3 17:52:41 2023, IK, Problem Fixed, , Hardware, Beamdump readout issue - solved
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Current readout issues from beamdump. Beam stopped from 17:46-17:52, run 36 ongoing.
MP & GJ checking the grounding and connection the beamdump readout. No visible issue found in the exp hall, but copper grounding wire was tightened, which seemingly resolved the issue (stability of beamdump readout). |
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Tue Mar 7 09:56:07 2023, OST, Problems, , mechanics, Beam stopped and operators controlling number 15_Ge dedector.
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Thu Mar 9 13:37:33 2023, OST, Other, , Beam, Beam stopped 13:37-13:49 for control again.
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Wed Mar 8 15:57:53 2023, IK, AM, Problems, , General, Beam issue
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no beam in 15:52 - 16:21 due to power supply problem |
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Sat Mar 11 12:42:42 2023, EG, Other, , , Beam intensity reduction
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Again beam intensity gradually increased reaching 2.4 kHz ontotal rate EAGLE_0 ch4. Beam intensity reduction requested. 1.8 kHz on ch4 after reduction. |
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Sat Mar 11 15:16:31 2023, EG, Other, , , Beam intensity reduced again
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Again beam intensity to high. Reduced to 2 kHz on ch4 GE |
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Sat Mar 11 14:15:55 2023, EG, Runs, , , Beam intensity rapid increase
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14:12 beam intensity instability. Rapid increase of beam intensity - twice the previous value. Returned to normal after 4 minutes. |
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Sat Mar 11 14:42:28 2023, EG, Runs, , , Beam instabilities
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Large beam intensity instabilities from 14:10 till 14:40. Beam intensity reduction requested. CH4 on Total rate EAGLE_0 returned to 1.9kHz. Intensity became stable.
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