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Fixed, e768s, Thu Aug 1 15:46:43 2019, OttoRun, RUN, General, 3-alpha, Run318
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[SIZE=3][B]Run : 318[/B][/SIZE]
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Fixed, e768s, Thu Aug 1 15:50:41 2019, OttoRun (ou pas), RUN, General, 3-alpha, run 317
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| Run 317 no pedestal supp alpha run |
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Fixed, e768s, Thu Aug 1 16:01:16 2019, OttoRun, RUN, General, 3-alpha, Run 319 (Alpha calibration with pedestal suppression)
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[SIZE=3][B]Run : 319[/B][/SIZE]
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Fixed, TEST, Thu Oct 17 12:01:09 2019, Franco & Marlène, GRIT, Hardware, 3-alpha, Test of configuration with 4 MUVI and 3 GAMERS 
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The electronics set-up for MUGAST2020 has been tested with 4 MUVI on 4 VXI crates, 1GMT for MASTER and 3 GAMERS for slaves.
Configuration file is named mugast.das
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Fixed, TEST, Thu Jan 23 14:06:51 2020, Franco&Marlène, GRIT, Hardware, 3-alpha, Status of detectors on 23-01-20 6x
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Short alpha source run (not saved on disk) to test the detectors.
Summary :
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Fixed, TEST, Wed Feb 12 09:32:17 2020, mugast, RUN, General, 3-alpha, Run 500 - 3alpha - mugast standalone
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RUN 500
start: 11/02/2020 @ 19h00
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Fixed, TEST, Fri Feb 14 10:49:22 2020, Marlène & Franco, RUN, General, 3-alpha, MG11 issues
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We analyzed the behaviour of the annular. We realized that the 4-peaks behaviour on X was already present last year but only on one sector, now it's on
two sectors. We noticed that there is a correlation between the malfunctioning sectors and the missing strips on Y. Last year there was only a missing
strip on Y, affecting only one sector on X; now 3 strips are missing on Y, affecting 2 sectors on X. We believe that the fact that the boundings are missing |
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Fixed, TEST, Tue Feb 18 10:00:40 2020, mugast, RUN, General, 3-alpha, RUN 501 - missing info
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RUN 501
alpha run with cooling during the night from 13-14/02/2020 |
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Fixed, TEST, Tue Feb 18 17:53:36 2020, Franco, GRIT, General, 3-alpha, Alpha calibration for exp e775s (run 0501)
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In attachment raw and calibrated spectra for run 0501 (alpha source) for MUST2 and Mugast.
Overall resolution of 36 keV on MUST2 and 40 keV on MUGAST detector. |
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Fixed, e775s, Fri Mar 6 17:47:07 2020, OttoRun, RUN, General, 3-alpha, Run192
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[SIZE=3][B]Run : 192[/B][/SIZE]
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Fixed, e775s, Fri Mar 6 17:52:10 2020, OttoRun, RUN, General, 3-alpha, Run193
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[SIZE=3][B]Run : 193[/B][/SIZE]
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Fixed, e775s, Mon Mar 9 16:32:46 2020, OttoRun, RUN, General, 3-alpha, Run200
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[SIZE=3][B]Run : 200[/B][/SIZE]
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Fixed, TEST, Mon Mar 9 16:48:25 2020, OttoRun, RUN, General, 3-alpha, Run524
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[SIZE=3][B]Run : 524[/B][/SIZE]
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Fixed, TEST, Tue Mar 10 11:05:40 2020, Franco, GRIT, Hardware, 3-alpha, Trip in the cooling system after e775s experiment
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In the weekend after the experiment e775s (7-8 March 2020) a problem with the cooling system of Mugast occurred. In particular, in the morning of Saturday
7th around 12h the cooling system tripped and some detectors remained switched on until Monday 9th in the morning. After a check, it looks like all Mugast
detectors are ok except MG6, which cannot be biased anymore.
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Fixed, e793s, Wed Mar 11 19:02:54 2020, mugast, GRIT, General, 3-alpha, Alpha calibration for e793s - run 600
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========================================
========================================
========================================
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Fixed, e793s, Wed Mar 11 22:01:18 2020, mugast, GRIT, General, 3-alpha, Alpha calibration - run 600
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After 2h30' of run we checked the temperatures of the boards and we noticed that MG7 had 63 degrees on both X and Y, which is very high; MG9 was around
56 on X and 26 on Y. There might be a problem in the loop of the cooling system because the other detectors are pretty fine, with temperatures around 20-25
degrees.
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Fixed, e793s, Thu Mar 12 14:54:13 2020, Marlène & Franco, GRIT, General, 3-alpha, Run 0601 - alpha source calibration
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We start the alpha source calibration run with pedestal suppression (except for MG7 and MG9) and cooling at 0 deg.
The HV for MUST2 are in attachment. It is not clear whether they will remain unchanged during the experiment since some currents are high. |
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Fixed, e793s, Thu Mar 12 17:25:19 2020, mugast, GRIT, General, 3-alpha, run 0601 - alpha source with pedestals
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| Alpha source calibration run without pedestal suppression and cooling at 0 deg. |
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Fixed, TEST, Wed Feb 3 16:42:41 2021, Franco, GRIT, General, 3-alpha, Status of the set-up (February 3rd 2021)
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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.
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Fixed, TEST, Thu Feb 4 18:16:47 2021, Franco, GRIT, Hardware, 3-alpha, Problems with the annular persist 8x
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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 |
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