 Fri Jun 7 22:33:13 2024, LB, Run 45 - tests on beam-target overlap 
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Tried to double check beam-target overlap by changing beam horizontal coordinate.
In the tablethe counts in the 4000-5200 keV region in each of the detectors are recorded. Counts were taken for a total time of 5 minutes per
beam position. Attached are the xy plots. |
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Sat Jun 8 00:14:39 2024, LB, Run 46 - background with beam 22x
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RUN 46- started at 00:50
Horizontal beam position = 4.0 mm, vertical beam position = -5.0 mm.
Detectors are Left arm OUT = 36.64, right arm IN = 64.60 mm |
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Wed May 28 10:54:14 2025, LB, Run 27
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Run 27 running
28/05/2025
(ignore 26 - in-between run) |
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Thu Feb 24 22:45:08 2022, Jordan, George, Rui-Jiu Chen, check 14x
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- Motor fully out position.
SW3
- Merger OK |
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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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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 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 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 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 06:00:25 2022, Jordan, George, Current status
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07:00
Pressure Stable
Temps OK |
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Fri Jun 14 10:21:24 2024, JS, TD, Run 68 9x
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Frank has been tuning the beam since 08:00
detectors moved fully out
11:20 |
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Wed Jun 5 08:34:04 2024, JM. DB, PC, Target nozzle change
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09:30
Target density has not improved despite efforts last night. Mid 10 - low 11 density range. We will try to change the nozzle.
Target nozzle moved to the out position. |
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Thu Feb 15 12:40:52 2024, JM. CB, AR, AB, Run30 - uncooled beam on target 29x
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Run started 13:40
Target density 4.3e11, Beam injection is ~1e7, Pressure in the ring is ~1e-10 mbar.
Detectors have been moved IN with servo motors only (left arm pot = 36.5 mm, right arm pot =37.7 mm |
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Thu Feb 17 15:09:40 2022, JM,CB,SD, Alpha background run44 8x
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16:09
Check Leakage current: (see attachment 1) |
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Fri May 31 06:01:55 2024, JM, TY, PW, EM, CB, Run 12 - beam on target 12x
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07:00
Run 12 started. D+ beam is incident on the target at 1.5 MeV
Beam intensity in the ring is ~4e7 particles |
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Thu Feb 3 22:05:33 2022, JM, TD, OH(remotely), Bias update and grounding
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9:30 Bias remained stable overnight - 60V 2.95 uA.
10:00 No grounding attached initailly. Pulser ON, lots of noise across all ~250-300 kHz across biased detector. Waveforms and histograms saved
to /tmp. Pulser width for aida 6 ~300 channels. Aida 7,8 similar, aida 5 producing no ADC data. |
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Fri Feb 4 09:53:48 2022, JM, TD, OH (remotely), Alpha spectra overnight 8x
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DAQ was left running last night from 19:30. Detector bias 80V with a leakage current ~3.4 uA. Pulser OFF.
Observed alphas in spectra overnightin the 20,000 to 28,000 channel range for the pn side and 36,000 to 44,000 range on the nn side of the detector.
Zero energy noise peak is at channel 32000. |
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Mon Jan 10 20:52:53 2022, JM, TD, OH, Baking tent removed, VI tests
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Baking tent, frame and trays fully removed from CARME chamber. Removal of baking frame required removing air lines from upper gate valve and repositioning
of vacuum hose connecting turbo pump to backing line and turbo power cable. Some difficulty encountered removing upper baking frame now the target support
frame is assembled. Small modification seperating section in two would aid future installation and disammebly. |
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Fri Feb 2 08:59:36 2024, JM, TD, CB, Run1 start - pulser widths spreadsheet 20x
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Current pulser widths excel spreadsheet attached
09.58 DSSSD bias OK - attachment 1
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Wed Sep 23 13:34:32 2020, JM, TD, Wednesday 23 September
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Connected Leybold Ionivac IE514 to Leybold Combivac CM52 Vacuum Gauge Controller
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