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MUST2
SAMURAI_2018
S3-LEB-LPC
SUPERNEMO
MUGAST
EXPAND
SCALP
GALATRON
HiCARI
VELO
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| MUGAST |
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Message ID: 11
Entry time: Thu Feb 14 08:50:58 2019
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| Author: |
Marlene |
| ExpNbr: |
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| Type: |
GRIT |
| Category: |
General |
| Status: |
Fixed |
| Target-Source: |
3-alpha |
| Subject: |
RUN 27 |
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RUN 27 on 14th of feb.
3 alpha source (one in front of trap., one in front of square detectors)
MG10, MG4, MG7 and MG5 are OK.
MG1 shows alpha but at lower energy and with bad resolution (particularly on X). We suspect it is not well depleted. We tried to increase the bias up to 200V but did not see any change.
It is due to a non working SA/SL external cable that produces this error (we tested it with several detectors, we also tried to change the MUVI channel and it still does the same)
Conclusion :
We have tested all trapezoid detectors (MG1, MG3, MG4, MG5, MG7) the annular (MG11) and the thin square (MG10) they are all OK
Detectors (order in the GMT) :
MG10
MG1
MG4
-
MG7
MG5
-
-
attached : bias of detectors ( be careful : MG10 bias = MG11A)
spectra for all detectors |
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