MUST2 SAMURAI_2018 S3-LEB-LPC SUPERNEMO MUGAST EXPAND SCALP GALATRON HiCARI VELO
  MUGAST, Page 121 of 132  Not logged in MUGAST
Status ExpNbr Date Authordown Type Category Target-Source Subject
Fixede768s Sun Jul 28 14:57:26 2019 Franco & SylvainBEAMGeneralN/ABeam problems and DC trip
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.


Jenn, Andres and Daniele wrote:
- Updated from PCP about the problem with the beam: cyclotron went down and estimation of ~5h to have the beam back.
- After the beam went down, the Drift Chambers tripped making all the other biases go down (crate problem?). We tried to recover the biases but they don't go up. We decided not to call Diego at the moment, as the beam will take long to come back. We will call him when we have more news from PCP.
- Checked the water tray of MUGAST cooling system: seems ok.
FixedTEST Thu Oct 17 12:01:09 2019 Franco & MarlèneGRITHardware3-alphaTest of configuration with 4 MUVI and 3 GAMERS
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
We have modified the mugast.detector and the parameters for MUVI4 with names:
- MUVI4_ch1 : MG2
- MUVI4_ch2 : MG6
- MUVI4_ch3 : MG8
- MUVI4_ch4 : MG12 (not used and not tested)
For the 3 first channels of MUVI4 we connected MG1, MG3 and MG4.

Cables for MUVI4_ch2 is not working (to be repaired).

With the alpha source (double side) we were able to run during all night and it was stable (attached are pictures of alpha source).
We notice that the rate of MG7 is lower (1/3) than the other ones (as usual). We tried to increase bias but leakage current is also increasing proportionally.
We also notice that 3alpha source shows lower statistics in the last (higher energy) peak but all detectors backward see the same.
The rates of MG2 and MG8 are consistent (there was no pedestal suppression).

We performed a pulser test of MUVI4 putting 5000Hz rate. The dead time is about 97%. It is consistent with MUVI1 in the same condition (5000 Hz and no pedestal suppression). The dead time is 90% when we suppress the pedestals.
Attachment 1: Mugast_alpha_17102019
Attachment 2: Mugast_alpha_17102020_2
Fixede793s Tue Mar 10 18:46:13 2020 Franco & MarlèneGRITHardware Changes in MUGAST
- MG6 (FZ) is disconnected.
- MG7 (500um) is dismounted and MG8 (375um) is replacing it.
- The Y kapton of the annular has been changed.

Attached the alpha source spectra acquired on March 11th after the changes described above.
- MG8 looks better than MG7 but it looks like a part on X that was missing on MG7 is also missing on MG8, it can be due to a kapton.
- The annular behaves exactly as before and during e775s, the change of kapton did not solve the problem.
- MG9 here was not biased (it is on the MUST2 box).
Attachment 1: MG_X_raw_11032020.png
MG_X_raw_11032020.png
Attachment 2: MG_Y_raw_11032020.png
MG_Y_raw_11032020.png
Fixede786s Tue Jun 25 22:20:36 2019 FrancoRUNGeneralCryo-3HeRun58

OttoRun wrote:

OttoRun wrote:
*************************
Run : 58
*************************

Start at 2019-06-25 16:56:44.425517

target 700mb
Brho0=0.95 Tm
DC pressure 6 mbar
IC pressure 120 mbar
CATS2 inserted

AGATA position +51-25 mm

TRIGGER :
- VAMOS %1000
- CMG
- MM
- CATS2 %1000

Beam is back
scaler_run_58.png taken at the beginning of the run.


In the CATS position spectra the central part is missing (maybe for the high intensity of the beam?).
We can anyway recover the time information.

After the decrease of the high voltage of VAMOS drift chamber to avoid saturation of the signals
the BRho resolution has worsened of about 25% (see attachment). We will now increase it again (h. 22.30).
Attachment 1: BRho_run58.png
BRho_run58.png
Fixede786s Tue Jun 25 23:55:34 2019 FrancoRUNGeneralCryo-3HeRun58

Franco wrote:

OttoRun wrote:

OttoRun wrote:
*************************
Run : 58
*************************

Start at 2019-06-25 16:56:44.425517

target 700mb
Brho0=0.95 Tm
DC pressure 6 mbar
IC pressure 120 mbar
CATS2 inserted

AGATA position +51-25 mm

TRIGGER :
- VAMOS %1000
- CMG
- MM
- CATS2 %1000

Beam is back
scaler_run_58.png taken at the beginning of the run.

scaler_run_58.png is taken after 7h.


In the CATS position spectra the central part is missing (maybe for the high intensity of the beam?).
We can anyway recover the time information.

After the decrease of the high voltage of VAMOS drift chamber to avoid saturation of the signals
the BRho resolution has worsened of about 25% (see attachment). We will now increase it again (h. 22.30).
Attachment 1: scaler_run_58_2.png
scaler_run_58_2.png
Fixede768s Mon Jul 15 14:38:27 2019 FrancoRUNGeneral3-alphaRun302
Attached the calibrated spectra for MUST2 and Mugast for run 302 (no pedestals).


OttoRun wrote:
*************************
Run : 302
*************************

Start at 2019-07-11 16:54:22.512184

3 alpha calibration run
+ without MM2 masks
+ suppressed pedestals

Square detectors:
+ MG10: all X strips masked; mate 14 & 16 masked
+ MG9: all X & Y strips masked

Stop at 2019-07-12 05:44:35.805449
Stop comment:
Attachment 1: run0302_must2_cal.png
run0302_must2_cal.png
Attachment 2: run0302_mugast_cal.png
run0302_mugast_cal.png
Fixede768s Mon Jul 15 18:28:19 2019 FrancoRUNGeneral3-alphaRun301
Attached the calibrated spectra for MUST2 and Mugast for run 301.


OttoRun wrote:
*************************
Run : 301
*************************

Start at 2019-07-11 15:07:27.670320

3 alpha calibration run
+ without MM2 masks
+ non suppressed pedestals

Square detectors:
+ MG10: all X strips masked; mate 14 & 16 masked
+ MG9: all X & Y strips masked

Stop at 2019-07-11 16:52:55.206383
Stop comment: stopping run to put pedestal suppression
Attachment 1: run0301_must2_cal.png
run0301_must2_cal.png
Attachment 2: run0301_mugast_cal.png
run0301_mugast_cal.png
Fixede768s Tue Jul 16 09:44:53 2019 FrancoRUNGeneral3-alphaRun306
Attached the calibrated spectra for Mugast and MUST2 for run 0306 and the raw spectra of Mugast.


OttoRun wrote:
*************************
Run : 306
*************************

Start at 2019-07-12 17:17:19.657074

3 alpha calibration run
+ MM2 masks
+ suppressed pedestals (new pedestal for all trap detectors)

Square detectors:
+ MG10: not biased
+ MG9 removed

Stop at 2019-07-14 21:18:42.648096
Stop comment: stopping for heating cooling system after unbiasing MUGAST

Stop at 2019-07-15 15:36:28.594934
Stop comment: type your message here

Stop at 2019-07-15 16:25:22.582232
Stop comment: type your message here

Stop at 2019-07-15 18:02:50.677903
Stop comment: changing ADC channel for T_AGATA_HF
Attachment 1: run0306_mugast_cal.png
run0306_mugast_cal.png
Attachment 2: run0306_must2_cal.png
run0306_must2_cal.png
Attachment 3: run0306_mugast_raw.png
run0306_mugast_raw.png
Fixede768s Tue Jul 16 09:51:56 2019 FrancoRUNGeneral3-alphaRun301
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).



Franco wrote:
Attached the calibrated spectra for MUST2 and Mugast for run 301.


OttoRun wrote:
*************************
Run : 301
*************************

Start at 2019-07-11 15:07:27.670320

3 alpha calibration run
+ without MM2 masks
+ non suppressed pedestals

Square detectors:
+ MG10: all X strips masked; mate 14 & 16 masked
+ MG9: all X & Y strips masked

Stop at 2019-07-11 16:52:55.206383
Stop comment: stopping run to put pedestal suppression
Attachment 1: pedestals_MG3_STRX_E_RAW.dat
#Strip 	 Pedestal pos.
1	8192.3
2	8192.04
3	8192.01
4	8192.3
5	8192.07
6	8192.05
7	8192.53
8	8191.71
9	8191.33
10	8190.86
11	8190.64
12	8190.34
13	8189.44
14	8188.99
15	8437.76
16	8437.76
17	8192.91
18	8192.76
19	8192.5
20	8192.05
21	8192.05
22	8192.04
23	8191.66
24	8191.9
25	8191.88
26	8191.93
27	8191.77
28	8191.15
29	8191.19
30	8191.39
31	8191.63
32	8192.03
33	8192.28
34	8192.46
35	8191.93
36	8191.42
37	8192.15
38	8192.55
39	8192.74
40	8192.58
41	8192.57
42	8193.06
43	8192.91
44	8192.55
45	8192.46
46	8192.66
47	8192.61
48	8192.83
49	8192.98
50	8192.61
51	8192.45
52	8192.87
53	8192.83
54	8192.57
55	8192.57
56	8192.46
57	8192.59
58	8192.48
59	8192.53
60	8192.54
61	8192.65
62	8192.68
63	8192.57
64	8192.7
65	8191.82
66	8190.82
67	8191.16
68	8191.34
69	8191.22
70	8191.68
71	8191.89
72	8191.74
73	8191.69
74	8192.04
75	8191.72
76	8191.75
77	8191.83
78	8192
79	8191.93
80	8191.85
81	8192.37
82	8192.54
83	8192.52
84	8192.29
85	8192.19
86	8191.81
87	8192.06
88	8192.51
89	8192.55
90	8192.27
91	8192.24
92	8192.35
93	8192.07
94	8192.51
95	8191.28
96	8190.31
97	8191.3
98	8191.94
99	8192.28
100	8192.65
101	8192.4
102	8191.86
103	8191.55
104	8191.57
105	8191.67
106	8191.76
107	8191.97
108	8191.58
109	8191.6
110	8191.96
111	8191.77
112	8191.89
113	8192.44
114	8192.58
115	8192.51
116	8192.37
117	8192.06
118	8191.6
119	8191.88
120	8191.7
121	8191.5
122	8191.73
123	8191.6
124	8191.4
125	8191.67
126	8191.94
127	8191.52
128	8191.83
Fixede768s Thu Jul 18 22:11:57 2019 FrancoOFFLINEGeneral Identification in Mugast
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.
Attachment 1: id_mugast_20Fblackpoints.png
id_mugast_20Fblackpoints.png
Fixede768s Fri Jul 19 23:10:18 2019 FrancoRUNGeneral3-alphaRun302
Added energy calibration for square detector (MG 10).


OttoRun wrote:
*************************
Run : 302
*************************

Start at 2019-07-11 16:54:22.512184

3 alpha calibration run
+ without MM2 masks
+ suppressed pedestals

Square detectors:
+ MG10: all X strips masked; mate 14 & 16 masked
+ MG9: all X & Y strips masked

Stop at 2019-07-12 05:44:35.805449
Stop comment:
Attachment 1: run302_MG_Ecal.png
run302_MG_Ecal.png
Fixede768s Fri Jul 19 23:12:36 2019 FrancoRUNGeneral3-alphaRun302
Added energy calibration for square detector (MG 10).


Franco wrote:
Attached the calibrated spectra for MUST2 and Mugast for run 302 (no pedestals).


OttoRun wrote:
*************************
Run : 302
*************************

Start at 2019-07-11 16:54:22.512184

3 alpha calibration run
+ without MM2 masks
+ suppressed pedestals

Square detectors:
+ MG10: all X strips masked; mate 14 & 16 masked
+ MG9: all X & Y strips masked

Stop at 2019-07-12 05:44:35.805449
Stop comment:
Attachment 1: run302_MG_Ecal.png
run302_MG_Ecal.png
Fixede768s Sat Jul 20 05:58:18 2019 FrancoOFFLINEGeneral Time calibration for MG10_X
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.
Attachment 1: run_0089_MG10_timecal.png
run_0089_MG10_timecal.png
Attachment 2: ETOF_MG10_run115.png
ETOF_MG10_run115.png
Fixede768s Mon Jul 22 21:30:36 2019 FrancoOFFLINEGeneralLiFIdentification in Mugast for Ne in VAMOS
Difference in identification in Mugast when gating on 19Ne and when gating on the two nearby isotopes (runs from 112 to 121).
Attachment 1: Mugast_19Ne.png
Mugast_19Ne.png
Attachment 2: Mugast_18Ne_and_20Ne.png
Mugast_18Ne_and_20Ne.png
FixedTEST Tue Feb 18 17:53:36 2020 FrancoGRITGeneral3-alphaAlpha calibration for exp e775s (run 0501)
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.
Attachment 1: E_raw_MM.png
E_raw_MM.png
Attachment 2: E_raw_MG.png
E_raw_MG.png
Attachment 3: E_cal_MM.png
E_cal_MM.png
Attachment 4: E_cal_MG.png
E_cal_MG.png
Fixed  Thu Feb 20 17:58:51 2020 FrancoGRITGeneral Time calibration for e775s exp
Attached the raw and calibrated time spectra for the pulser runs.
Attachment 1: T_raw_MM.png
T_raw_MM.png
Attachment 2: T_raw_MG.png
T_raw_MG.png
Attachment 3: T_cal_MM.png
T_cal_MM.png
Attachment 4: T_cal_MG.png
T_cal_MG.png
FixedTEST Tue Mar 10 11:05:40 2020 FrancoGRITHardware3-alphaTrip in the cooling system after e775s experiment
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.
The alpha calibration run of the weekend (run_0193) is divided into 55 runs. Runs from .0 to .11 can be safely used for the post-experiment alpha calibration, those from .12 to .54 are probably useless to this aim.
In the first attachment is the evolution of the DSSD energy (of all telescopes together because it's the calibrated energy) for run .12, that started on Saturday 7th at 11.43 and ended at 12.55. At the end of the run it is evident that something wrong is going on with the detectors. In the following runs this behaviour is confirmed and going even worse.
In the second attachment is the evolution of the DSSD energy for MG6 and for MG1 in run .13, so right after the cooling system tripped, showing that MG6 immediately "suffered" much more the heating-up.
In the last 2 attachments are the raw energies for X and Y of MG11 in run 0524 done on Monday 9th afternoon after we re-biased the detectors compared with run 0193 (from .9 to .11) before the cooling system tripped. It looks like the part of MG11 X from strip 35 to 50, that before the heating was having the 4-peaks behaviour, now behaves normally, while the Y is still the same, with 3 missing strips.
Attachment 1: run0193_12_heat.png
run0193_12_heat.png
Attachment 2: run0193_13_heat_MG6vsMG1.png
run0193_13_heat_MG6vsMG1.png
Attachment 3: run_0524_MG11XYraw.png
run_0524_MG11XYraw.png
Attachment 4: run_0193_9_19_11_MG11XYraw.png
run_0193_9_19_11_MG11XYraw.png
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

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