MUST2 SAMURAI_2018 S3-LEB-LPC SUPERNEMO MUGAST EXPAND SCALP GALATRON HiCARI VELO
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Message ID: 33     Entry time: Mon Jun 12 22:48:45 2017
Author: Valérie Lapoux 
ExpNbr: e748 
Type: MUST2 
Category: General 
Status: Fixed 
Target-Source:  
Subject: Tests of the DAQ with the Alpha Source 
12Th June. 3-peak Alpha source rotated towards the telescopes MM1 to MM4 (square wall of 4 telescopes).
MUVI configurations are fixed on the DAS. See pictures below. Thresholds : 402 keV.
We have DAS error messages for telescopes T2 and T7 with problems of data transmission, "I2C errors" = logic signals problems, maybe due to
bad cable connection inside the reaction chamber.
This problem should be fixed on 13th June looking at the cables in the chamber.

GMT trigger configuration: see picture, all telescopes T1 T3 T4 T5, T6 and T8.
T2 and T7 not included in the trigger inputs.
FAG window : 500 ns; Validation width 5.0 µs.

We can see the three peaks on the telescopes T1 T3 and T4 which are in the trigger (spectra taken during 30 minutes for checking).
T6 (in the trigger also) is placed at 90 deg and it can detect also some alphas.
Attachment 1: GMTconfig12juin.png  88 kB  Uploaded Tue Jun 13 00:08:57 2017  | Hide | Hide all
GMTconfig12juin.png
Attachment 2: GMTconfigSourceAlpha.png  31 kB  Uploaded Tue Jun 13 00:09:08 2017  | Hide | Hide all
GMTconfigSourceAlpha.png
Attachment 3: ConfigCAStel1Muvi1.png  120 kB  Uploaded Tue Jun 13 00:09:31 2017  | Hide | Hide all
ConfigCAStel1Muvi1.png
Attachment 4: DASmuvi1config.png  124 kB  Uploaded Tue Jun 13 00:09:48 2017  | Hide | Hide all
DASmuvi1config.png
Attachment 5: ConfigPhysMuvi1Cas1Thresh.png  101 kB  Uploaded Tue Jun 13 00:10:01 2017  | Hide | Hide all
ConfigPhysMuvi1Cas1Thresh.png
Attachment 6: MM1to4stripYsrcAlpha.png  40 kB  Uploaded Tue Jun 13 00:10:14 2017  | Hide | Hide all
MM1to4stripYsrcAlpha.png
Attachment 7: SpectresAlpha_12juin.png  42 kB  Uploaded Tue Jun 13 00:10:25 2017  | Hide | Hide all
SpectresAlpha_12juin.png
Attachment 8: SetUpMateGainShaper.png  84 kB  Uploaded Tue Jun 13 00:10:37 2017  | Hide | Hide all
SetUpMateGainShaper.png

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