 Mon May 27 07:18:26 2019, A. Algora, AIDA Plastik
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Nishimura san found the module used for the AIDA plastik in the last BRIKEN run. We put it instead of the TFA. It was kept in the same
setting conditions as in the earlier experiment.
AIDA plastic module configuration (Ortec 671 Amplifier) |
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Mon May 27 07:34:58 2019, A. Algora, HV status
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EMPTY00 │ 0.0 V 1500.0 uA 0.5 V 0.5 uA Off
│00.0000
DET01 │ 599.0 V 1500.0 uA 598.5 V 90.0 uA On |
Mon May 27 08:26:20 2019, A. Algora, Co source on top of Aida 
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Start: 16:28
Stop: 17:03
Rates: 14.4 kHz (Dinodes), 12.8 kHz (Anodes) |
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Mon May 27 09:12:22 2019, A. Algora, Background, with AIDA
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Start: 17:13
Stop: 18:03
Rates: 1.8 kHz (Dynodes), 1.8 kHz Anodes |
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Mon May 27 12:54:48 2019, A. Algora, Reference detector
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The reference detector was very noisy. The threshold has been changed from 2000 to 3200. We should look at this more carefully.
The position of the fiber was also changed. It moved too close to the Cs peak. Probably it has to do with the flexibility of the plastik screw
that fixes it. |
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Mon May 27 13:50:54 2019, A. Algora, preparation directory moved
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| The preparation directory was moved to /data/DRikenPreparation (from its first place /home/dacq/DRikenPreparation) because the lack of space. |
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Mon May 27 13:58:03 2019, A. Algora, Background, no lmd, AIDA in, no sources around
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Start: 21:59
Stop: 13:15 (next day, 28/05)
Rates: 1.9-2.3 (dynodes), 1.8-1.9 kHz (anodes) |
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Tue May 28 05:30:03 2019, A. Algora, Reference detector threshold changed
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Again the Reference detector was firing mainly in the noise. Threshold increased to 5000 !!!!
New config file was saved, rate of Ref detector now: aprox. 400 kHz |
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Tue May 28 05:43:41 2019, A. Algora, 133Ba source. (IR052 from the third floor)
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Start: 13:43
Stop: 14:05
Comments: The source looks also too strong. Rates: 39 kHz (Dynodes), 40 kHz (anodes). |
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Tue May 28 06:13:27 2019, A. Algora, Background, Aida in
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Start: 14:13
Stop: 15:47
Lmd: Background_AIDA_in_201905281413_231.dlt .. Background_AIDA_in_201905281413_233.dlt |
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Tue May 28 07:49:51 2019, A. Algora, Background, no lmd
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Start: 15:50
Stop: 10:09 (next day)
Root: 201905291009_background_AIDA_in.root |
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Wed May 29 02:07:20 2019, A. Algora, Irradiation for 24Na
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Irradiation of two pieces of aluminium of 80 mm x 40 mm x 10 mm will be performed at the second BigRips dipole.
The pieces were placed with the help of Fukuda and Nishimura san. |
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Wed May 29 07:04:19 2019, A. Algora, F11 plastic connected
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F11 plastic has been connected to our dacq as it was in the earlier BRIKEN setting.
The detector cables were followed and connections checked.
The outputs of the detector (L and R) go through an Ortec TFA 474 with the following settings: |
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Wed May 29 08:29:26 2019, A. Algora, latest conf file
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| Latest configuration file from 28 of May |
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Wed May 29 09:08:11 2019, A. Algora, AIDA plastic setting changed
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AIDA plastic changed.
HV was at 1000 V, it was changed to 1300 V
Coarse gain was changed to x5, Fg remains as it was. |
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Wed May 29 09:49:25 2019, A. Algora, New configuration file
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| New configuration file after a few small changes in thresholds. |
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Wed May 29 10:01:10 2019, A. Algora, Background, no lmd, AIDA in
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Start: 18:02
Stop: 18:33, partial file (201905291833_background_AIDA_in.root), Stop: 09:53 saved also next day (30/05) 201905300953_background_AIDA_in.root
Comments: AIDA in, Bigrips is doing settings (105Te to my best knowledge). There is a lead wall before our setting. No apparent change in the |
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Thu May 30 02:03:33 2019, A. Algora, Ref detector position changed, AIDA plastik HV changed
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The position of the reference detector in the ancilliary card was changed from channel 10 to channel 9. Remember that this is important
in relation to all files saved until now.
The HV of AIDA plastic was changed from 1300 V back to 1000 V. |
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Thu May 30 02:44:56 2019, A. Algora, Background, just a test
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Start: 11:01
Stop: 13:37
Root: 201905301337_background_AIDA_in.root |
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Thu May 30 06:41:18 2019, A. Algora, Background with the beam
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There was an small increase in the counting rate of the detectors after the beam was delivered. The rate at
F7 was of the order of 5 kHz. But remember that there is a lead wall protecting the detector. Root file saved. Look at TSumA for example
Root: 201905301442_background_AIDA_in.root |