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Fixed, e768s, Sun Jul 28 14:57:26 2019, Franco & Sylvain, BEAM, General, N/A, Beam problems and DC trip
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The HV and the vacuum in VAMOS are now recovered and back to the normal values. The water tray is 20% filled and under control. Mugast voltages and currents
seem all ok.
Latest news from PCP are that they are still tuning CSS1 and CSS2. Updates concerning the beam schedule are for the moment no more optimistic than before.
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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, e793s, Tue Mar 10 18:46:13 2020, Franco & Marlène, GRIT, Hardware, , Changes in MUGAST
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- MG6 (FZ) is disconnected.
- MG7 (500um) is dismounted and MG8 (375um) is replacing it.
- The Y kapton of the annular has been changed.
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Fixed, e786s, Tue Jun 25 22:20:36 2019, Franco, RUN, General, Cryo-3He, Run58
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[quote="OttoRun"][quote="OttoRun"]*************************
[SIZE=3][B]Run : 58[/B][/SIZE]
*************************
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Fixed, e786s, Tue Jun 25 23:55:34 2019, Franco, RUN, General, Cryo-3He, Run58
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[quote="Franco"][quote="OttoRun"][quote="OttoRun"]*************************
[SIZE=3][B]Run : 58[/B][/SIZE]
*************************
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Fixed, e768s, Mon Jul 15 14:38:27 2019, Franco, RUN, General, 3-alpha, Run302
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Attached the calibrated spectra for MUST2 and Mugast for run 302 (no pedestals).
[quote="OttoRun"]*************************
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Fixed, e768s, Mon Jul 15 18:28:19 2019, Franco, RUN, General, 3-alpha, Run301
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Attached the calibrated spectra for MUST2 and Mugast for run 301.
[quote="OttoRun"]*************************
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Fixed, e768s, Tue Jul 16 09:44:53 2019, Franco, RUN, General, 3-alpha, Run306
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Attached the calibrated spectra for Mugast and MUST2 for run 0306 and the raw spectra of Mugast.
[quote="OttoRun"]*************************
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Fixed, e768s, Tue Jul 16 09:51:56 2019, Franco, RUN, General, 3-alpha, Run301
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Attached the dat file with the position of the pedestals for each strip of MG3_X
that can be used to correct the pedestal problem of MG3_X in later runs (from run O306).
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Fixed, e768s, Thu Jul 18 22:11:57 2019, Franco, OFFLINE, General, , Identification in Mugast
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Attached the spectra obtained in Mugast for run_0072_0_agata.root.
The colored ones are obtained simply asking for multiplicity 1, the black points are obtained
asking also for Z=9 (F) and for A=20 in VAMOS with the condition abs(mM_Q2*8-20)<0.5. |
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Fixed, e768s, Fri Jul 19 23:10:18 2019, Franco, RUN, General, 3-alpha, Run302
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Added energy calibration for square detector (MG 10).
[quote="OttoRun"]*************************
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Fixed, e768s, Fri Jul 19 23:12:36 2019, Franco, RUN, General, 3-alpha, Run302
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Added energy calibration for square detector (MG 10).
[quote="Franco"]Attached the calibrated spectra for MUST2 and Mugast for run 302 (no pedestals).
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Fixed, e768s, Sat Jul 20 05:58:18 2019, Franco, OFFLINE, General, , Time calibration for MG10_X
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Attached a tentative time calibration for the square MG10_X from run 89 (to be checked!).
Even applying the calibration the spectrum E_TOF for MG10 (run 115) displays many structures. |
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Fixed, e768s, Mon Jul 22 21:30:36 2019, Franco, OFFLINE, General, LiF, Identification in Mugast for Ne in VAMOS
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| Difference in identification in Mugast when gating on 19Ne and when gating on the two nearby isotopes (runs from 112 to 121). |
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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, , Thu Feb 20 17:58:51 2020, Franco, GRIT, General, , Time calibration for e775s exp
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| Attached the raw and calibrated time spectra for the pulser runs. |
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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, TEST, Tue Feb 2 16:41:17 2021, Franco, VACUUM, Hardware, N/A, MUGAST undervacuum and powered up
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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.
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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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