MUST2 SAMURAI_2018 S3-LEB-LPC SUPERNEMO MUGAST EXPAND SCALP GALATRON HiCARI VELO
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Status ExpNbr Date Author Type Category Target-Source Subject
FixedTEST Tue Feb 2 16:41:17 2021 FrancoVACUUMHardwareN/AMUGAST undervacuum and powered up
I put back the supply of MM1 to the channel 1 of the MUST2 box (as in the normal configuration) and polarized the detectors to make a rapid re-check. I didn't see any detector tripping. MM1, switched on only for a couple of minutes, had a stable current at 1.3 uA. The stability of the detectors over time should anyway be checked better tomorrow leaving them polarized for a longer time.


Adrien wrote:
MUGAST is undervacuum thanks to Arnaud and Laurent.

I switch on all BT and HT. everything fine so far. Keeping the HV to check there is no trip on the silicon
FixedTEST Wed Feb 3 16:42:41 2021 FrancoGRITGeneral3-alphaStatus of the set-up (February 3rd 2021)
We re-mounted the annular, put the source and cooled down to 0 deg. Voltages and spectra are attached.
MG11 has a very high current (15 uA) but stable. MG9 started from 2 uA and its current is slightly increasing. The MUST2 detectors don't show anymore that oscillation in current that we observed one year ago. MM3 has a higher current (2.9 uA) with respect to the others.
Only 5 sectors are working for the annular, 8 less than last year. We need to check whether it is a problem of the kapton or of the detector itself.
Attachment 1: Voltages_03022021.png
Voltages_03022021.png
Attachment 2: MM_raw_03022021.png
MM_raw_03022021.png
Attachment 3: MG_X_raw_03022021.png
MG_X_raw_03022021.png
Attachment 4: MG_Y_raw_03022021.png
MG_Y_raw_03022021.png
FixedTEST Thu Feb 4 18:16:47 2021 FrancoGRITHardware3-alphaProblems with the annular persist
We opened the chamber to verify the connections of the kaptons but they were all well connected. We checked with the tester the conductivity of the kapton YA5 and it was fine so we excluded any problem related to the kapton. The boards are working properly (the pulser is well seen). We have to conclude that the problem comes from the detector. We made another alpha source run and indeed the result is the same as yesterday -> 5 sectors working on Y. We also tried to rise the HV of the annular up to 95V instead of the nominal 80V: the current went to 19 uA but no new sector appeared in the spectra.
Apart from the usual spectra, attached are also the pedestals of MG11, the alpha spectrum for ch48 of MG11_Y (one of the working sectors). The HV were the same as yesterday.
Attachment 1: MM_raw_04022021.png
MM_raw_04022021.png
Attachment 2: MG_X_raw_04022021.png
MG_X_raw_04022021.png
Attachment 3: MG_Y_raw_04022021.png
MG_Y_raw_04022021.png
Attachment 4: MG_impact_04022021.png
MG_impact_04022021.png
Attachment 5: MM_impact_04022021.png
MM_impact_04022021.png
Attachment 6: pedestals_MG11.png
pedestals_MG11.png
Attachment 7: LV_04022021.png
LV_04022021.png
Attachment 8: alpha_spectrum_ch48_MG11Y.png
alpha_spectrum_ch48_MG11Y.png
FixedTEST Fri Feb 5 12:44:42 2021 FrancoGRITHardwareN/APulser on MG11 MUFEE Y
I managed to obtain the spectrum with the pulser on the annular (Y side, namely sectors).
The raw strip numbers where I should have the 16 sectors are: 14, 16, 18, 20, 22, 24, 26, 28, 36, 38, 40, 42, 44, 46, 48 and 50.
The 5 strips I could see with the alpha source are: 20, 40, 44, 48, 50.
Now with the pulser I don't see the following strips: 14, 16, 18, 20, 22, 24, 26, 28, 36, 40, 42, 44, 48, 50.
So the pulser apparently doesn't go through most of the channels that are connected to a sector and all the channels that were ok with the alpha source now don't see the pulser...
The plots below are the pulser energy vs the raw strip number with a zoom on the region where I should have all the sectors. The plot below is the projection on X (strip number) of the first plot, now considering all the strips -> only strips connected to sectors don't show the pulser peak.
Concerning the rings, most of them see the alpha source but only few of them (the ones between the two red lines in the last figure attached) correctly display three peaks. The others have many peaks as a result of missing sectors on the Y side.
Attachment 1: pulser_all_channels_MG11Y_05022021.png
pulser_all_channels_MG11Y_05022021.png
Attachment 2: pulser_all_strips_MG11Y_05022021.png
pulser_all_strips_MG11Y_05022021.png
Attachment 3: Working_rings_annular_05022021.png
Working_rings_annular_05022021.png
Fixede793s Mon Feb 8 10:27:23 2021 OttoTimeRUNGeneralN/ATimeCalibratorRun
*** Run Time Calibrator FSC ***
- Run: 605
- MUVI: MUVI1
- Side : MUFEE X (Junction)
- Telescope: 1, 2, 3, 4
Fixede793s Mon Feb 8 10:39:35 2021 OttoTimeRUNGeneralN/ATimeCalibratorRun
*** Run Time Calibrator FSC ***
- Run: 606
- MUVI: MUVI1
- Side : MUFEE Y (Ohmic)
- Telescope: 1, 2, 3, 4
Fixede793s Mon Feb 8 10:51:48 2021 OttoTimeRUNGeneralN/ATimeCalibratorRun
*** Run Time Calibrator FSC ***
- Run: 607
- MUVI: MUVI2
- Side : MUFEE X (Junction)
- Telescope: 1, 2, 3, 4
Fixede793s Mon Feb 8 11:04:04 2021 OttoTimeRUNGeneralN/ATimeCalibratorRun
*** Run Time Calibrator FSC ***
- Run: 608
- MUVI: MUVI2
- Side : MUFEE Y (Ohmic)
- Telescope: 1, 2, 3, 4
Fixede793s Mon Feb 8 11:16:18 2021 OttoTimeRUNGeneralN/ATimeCalibratorRun
*** Run Time Calibrator FSC ***
- Run: 609
- MUVI: MUVI3
- Side : MUFEE X (Junction)
- Telescope: 1, 2, 3, 4
Fixede793s Mon Feb 8 11:25:29 2021 Adrien and FreddyS1GeneralN/AFSC run
we ran FSC on all card. S1 is dismounted.
Pulser goes on all channel and works well so electronic is fine.
We will ask Laurent to remount the detector and re run the test.
Attachment 1: fscE_08022023.png
fscE_08022023.png
Attachment 2: fscT_08022022.png
fscT_08022022.png
Fixede793s Mon Feb 8 11:28:38 2021 OttoTimeRUNGeneralN/ATimeCalibratorRun
*** Run Time Calibrator FSC ***
- Run: 610
- MUVI: MUVI3
- Side : MUFEE Y (Ohmic)
- Telescope: 1, 2, 3, 4
Fixede793s Mon Feb 8 16:20:42 2021 OttoTimeRUNGeneralN/ATimeCalibratorRun
*** Run Time Calibrator FSC ***
- Run: 611
- MUVI: MUVI2
- Side : MUFEE X (Junction)
- Telescope: 1, 2, 3, 4
Fixede793s Mon Feb 8 16:33:22 2021 OttoTimeRUNGeneralN/ATimeCalibratorRun
*** Run Time Calibrator FSC ***
- Run: 612
- MUVI: MUVI2
- Side : MUFEE Y (Ohmic)
- Telescope: 1, 2, 3, 4
Fixede793s Fri Feb 12 08:52:30 2021 mugastRUNGeneral3-alpharun 613: long alpha run
all Muvi in trigger, mugast stand alone. all detector Bias on.
Fixede793s Fri Feb 12 18:07:24 2021 OttoTimeRUNGeneralN/ATimeCalibratorRun
*** Run Time Calibrator FSC ***
- Run: 614
- MUVI: MUVI2
- Side : MUFEE X (Junction)
- Telescope: 1, 2, 3, 4
Fixede793s Fri Feb 12 18:12:00 2021 AdrienS1HardwareN/AKapton change
Arnaud open today and change the Y Kapton (YA5) of the S1. Everything under vacuum/cooled again so I ran FSC, hopefully this will fix the issue we have with the Junction side.
Fixede793s Fri Feb 12 18:19:52 2021 OttoTimeRUNGeneralN/ATimeCalibratorRun
*** Run Time Calibrator FSC ***
- Run: 615
- MUVI: MUVI2
- Side : MUFEE Y (Ohmic)
- Telescope: 1, 2, 3, 4
Ongoinge793s Wed Mar 3 17:12:57 2021 FrancoS1HardwareN/ASchema of the new S1
The signals of the new S1 will be splitted among 6 Mugast boards, according to the scheme attached.
The HV for the S1 have been updated accordingly, with labels like MG11/CsIMGXX.
Attachment 1: S1.PNG
S1.PNG
Fixede793s Wed Mar 3 17:18:42 2021 FrancoGRITGeneralN/AMUVI's scheme and connections on the chamber
Attachment 1: connections_chamber_MUGAST.png
connections_chamber_MUGAST.png
Attachment 2: MUVI.PNG
MUVI.PNG
Fixede775s Thu Mar 4 10:45:42 2021 OttoRunRUNGeneralN/ARun200
*************************
Run : 200
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Start at 2021-03-04 10:45:28.182022

Test Merge Agata

Stop at 2021-03-04 10:49:30.722139
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