 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).
Source ID: IR052 from the third floor, small plastic rectangular form
Rates:
RefAn: 180 Hz
Dy01: 3.7 kHz
Dy02: 0.4 kHz
Dy11: 0.5 kHz
Dy12: 0.13 KHz
AIDA in. The source is put at the extreme of the source holder, at 16.5 cm from the edge of the detectors. Almost touching AIDA.
Lmd: 133Ba_source_AIDA_in_201905281343_227.dlt ..133Ba_source_AIDA_in_201905281343_230.dlt
Root: 201905281405_133Ba_AIDA_in.root |
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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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)
Root: 201905281315_background_AIDA_in.root
Comments: Aida inside. No sources around |
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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 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 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
Lmd: Background_AIDA_201905271711_210.dlt ... Background_AIDA_201905271711_226.dlt
Root: 201905271803_background_AIDA_in.root
Comments: AIDA in, in the same conditions as the earlier entry. Some asymetry in the spectra is seen. See EDy05 vs EDy15 and similarly EDy03 vs EDy13 |
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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)
Lmd: 60Co_source_AIDA_201905271627_196.dlt .... 60Co_source_AIDA_201905271627_209.dlt
Root: 201905271703_60Co_AIDA_in.root
Comments: AIDA in, sligthly less deeper than before. It is 17 mm less deeper. So from the other side we measure 17.7 mm to the nose of AIDa.
The source is on top of AIDA with a help of a plastic ruler, that it is lying on top of it. The other extreme of the ruler is attached with tape to the edge
of the frame on the beam side. The source is positioned on top of the detectors 3, and 4, in practical terms in the geometrical center, but on top of
AIDA. 60Co source from source box (key 3). No sources around, the sources are kept inside BELEN. |
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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 │00.0001
DET02 │ 548.5 V 1500.0 uA 548.0 V 82.5 uA On │00.0002
DET03 │ 530.5 V 1500.0 uA 530.0 V 80.0 uA On │00.0003
DET04 │ 697.5 V 1500.0 uA 697.5 V 105.0 uA On Admi4
DET05 │ 451.5 V 1500.0 uA 451.0 V 67.5 uA On 05
DET06 │ 820.0 V 1500.0 uA 820.5 V 123.0 uA On Status Ch06
DET07 │ 560.0──────────────560.0 V 84.0 uA On ────────────────┬─0.0007
DET08 │ 486.0 V 1500.0 uA 486.0 V 73.0 uA On │00.0008
EMPTY09 │ 0.0 V 1500.0 uA 1.0 V 0.5 uA Off │00.0009
EMPTY10 │ 0.0 V 1500.0 uA 0.5 V 0.0 uA Off │00.0010
EMPTY11 │ 0.0 V 1500.0 uA 1.0 V 0.5 uA Off │00.0011
EMPTY12 │ 0.0 V 1500.0 uA 0.0 V 0.0 uA Off │00.0000
DET11 │ 579.0 V 300.0 uA 579.5 V 86.5 uA On │00.0001
DET12 │ 506.0 V 300.0 uA 506.5 V 76.0 uA On │00.0002
DET13 │ 623.5 V 300.0 uA 623.5 V 92.5 uA On │00.0003
DET14 │ 649.5 V 300.0 uA 649.5 V 96.5 uA On │00.0004
DET15 │ 656.5 V 300.0 uA 656.5 V 97.5 uA On │00.0005
DET16 │ 530.5 V 300.0 uA 530.0 V 78.5 uA On │00.0006
EMPTY12 │ 0.0 V 1500.0 uA 0.0 V 0.0 uA Off │02.0000
DET11 │ 578.0 V 300.0 uA 578.0 V 86.5 uA On │02.0001
DET12 │505.5 V 300.0 uA 506.0 V 76.0 uA On │02.0002
DET13 │ 624.5 V 300.0 uA 624.5 V 92.5 uA On │02.0003
DET14 │ 650.0 V 300.0 uA 650.0 V 96.0 uA On │02.0004
DET15 │ 657.0 V 300.0 uA 657.0 V 98.0 uA On │02.0
DET16 │ 530.5 V 300.0 uA 530.0 V 78.5 uA On │00.0006
DET17 │ 462.0 V 300.0 uA 461.5 V 68.0 uA On │00.0007
DET18 │ 518.5 V 300.0 uA 518.5 V 77.5 uA On │00.0008
EMPTY19 │ 0.0 V 300.0 uA 0.0 V 0.0 uA Off │00.0009
EMPTY20 │ 0.0 V 300.0 uA 0.0 V 0.0 uA Off │00.0010
REF01 │ 800.0 V 300.0 uA 800.0 V 174.0 uA On │00.0011
EMPTY12 │ 0.0 V 1500.0 uA 0.0 V 0.0 uA Off │02.0000
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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)
Coarse gain: 20
Fine gain: ?
Shaping time (us): 0.5
Type: Gaus
Signal pos
The configuration of the digitizer might need to be updated (5) |
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Mon May 27 07:15:06 2019, A. Algora, 137Cs run, AIDA out, source in the center
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Start: 15:15
Stop: 15:31
Lmd: 137Cs_source_201905271514_187.dlt .. 137Cs_source_201905271514_195.dlt
Root: 201905271531_137Cs.root
Rates: 7.9 kHz (Dynodes), 7.9 kHz (Anodes)
Comments: Aida out, source in the center. As in earlier measurements 5 mm deeper.
Reference detector might require repositioning of the optical fiber. It appears too close to the Cs peak and it is very noisy.
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Mon May 27 07:11:22 2019, A. Algora, detectors realigned with Cs
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Small alignment corrections were needed, of the order of 0.5-1V.
All detectors were realigned |
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Sat May 25 07:04:52 2019, A. Algora, Ancilliary card used channels until now
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For the moment there are three channels connected.
Channel 5 is AIDA plastic,
Channel 10 is the anode of the Ref detector
Channel 16 is the pulser. |
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Sat May 25 06:53:35 2019, A. Algora, Background, no dlt files, last config file
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Start: 14:53 (May 25)
Stop: 14: 37 (May 27)
Root: 201905271437_background.root
Comment: there is small assymetry between one side and the other. Probably it is determined by the closeness of the big wall in the direction of the beam |
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Sat May 25 03:42:12 2019, A. Algora, Background, no sources around, Aida out
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Start: 11:42
Stop: 14:45
Lmd: Background_201905251141_182.dlt ..Background_201905251141_186.dlt
Root: 201905251445_background.root
Comments: No sources around. All were taken back. Only doubful sources might be there, that I need to ask Nishimura san.
AIDA is out |
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Sat May 25 02:11:09 2019, A. Algora, 60Co source, red box, no sources around, No AIDA
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Start: 10:27
Stop: 11:31
Root: 201905251131_60co.root
Lmd: 60Co_source_201905251027_176.dlt ...60Co_source_201905251027_181.dlt
Comments: possitioned as the measurements of yesterday. 5 mm deeper than earlier.
Red box with the other sources inside BELEN, far away from the DTAS
A few detectors have moved, but for the moment I will not correct it.
Reference detector in channel 10. It is very noisy now. I changed the threshold from 1400 to 1600 but still noisy. It requires further attention
New Config file saved. |
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Fri May 24 12:32:48 2019, A. Algora, Background measurement, no sources around
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Start: 20:32
Stop: 10:05
Lmd: Background_201905242032_111.dlt ...Background_201905242032_114.dlt
removed the rest of the files. Ocupying too much space
Root: Background_201905242032_111.dlt (temporary) to play (until 21;11),
full: 2019052521005_background.root
Comment: all sources were taken back. Check for assymetry. |
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Fri May 24 10:57:37 2019, A. Algora, 60Co, AIDA out, possitioned 5 mm deeper
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Start: 18:58
Stop: 20:20
Lmd: 60Co_source_201905241858_095.dlt ...60Co_source_201905241858_106.dlt
Root: 201905242020_60Co.root
Comments: AIDA out. The source is possitioned 5 mm deeper as in the earlier Cs measurement (same position as the earlier entry)
To check asymmetry effects |
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Fri May 24 09:43:49 2019, A. Algora, 137Cs source, AIDA out, to check assymetry
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Start: 17:43
Stop: 18:51
Root: 201905241851_137Cs.root
Lmd: 137Cs_source_201905241744_087.dlt...137Cs_source_201905241744_094.dlt
Comments: AIDA out. The source is positioned 5 mm deeper than before from the holder side (the arm is 5 mm longer).
To check if the assymetry is reduced. |
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Fri May 24 08:33:52 2019, A. Algora, background, AIDA is out
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Start: 16:35
Stop: 17:30
Rates: 1.5 kHz (Dynodes), 1.8 kHz (Anodes)
Listmode: Background_201905241635_082.dlt ...Background_201905241635_086.dlt
Root: 201905241730_background.root |
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Fri May 24 07:57:51 2019, A. Algora, Lead shielding heigth increased
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The aluminium plate of 3 cm thickness arrived and the lead shielding was dismounted and mounted again. We left a narrower hole in it.
Special thanks to Tom, who helped with the hard physical work. |