ELOG MUGAST

Alpha source --> status of detectors

Fri May 31 09:53:14 2019

Marlčne

GRIT

General

MG3T has been fixed by changing the X kapton.

I have removed aluminium foil on square detectors, the noise is slightly higher.

MG4T is not working properly : noisy on X but no signal on Y !! I see no triggers on the Y side. I tried to increase bias but it did increase noise. I checked in the last calibration of e744 it was working properly. Also I had to do pedestal realignement for this detector because everything was shifted.

MG7T seem to be slightly different than before. Strips X are hidden from the trigger because it became suddenly noisy.

MUGAST detectors status --> MG4T

Mon Jun 3 18:00:10 2019

Marlčne

GRIT

General

The problem of MG4T ha sbeen solved by changing the feedthrough.
The pulser on Y was not working and we were seeing no events (no ORD) because there was a problem with the bias of board. The issue is due to the feedthrough.
So now MG4T (HT &BT) are plugged in a free feedthrough (below MG1T) and I see pulser signals on Y.

The bias seems to apply normally on all detectors (in the dark).
The pulser is seen on each boards.
I have put back aluminium foil on square but I could not test it.

Tue Jun 11 18:59:36 2019

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Run : 231
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Start at 2019-06-11 18:58:31.909158

MUGAST 3alpha run pedestal supression
temperature -1 deg (trap) & -4 deg (must2) consigne 5 deg

no pedestal suppression (but alignement)

alpha source in front of cryogenic target, NOT AT TARGET POSITION !!!

Stop at 2019-06-11 21:40:22.107913
Stop comment:

Tue Jun 11 21:44:38 2019

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Run : 232
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Start at 2019-06-11 21:44:02.397316

MUGAST 3alpha run pedestal supression
temperature -1 deg (trap) & -4.5 deg (must2) consigne 5 deg

with pedestal suppression

alpha source in front of cryogenic target, NOT AT TARGET POSITION !!!

Stop at 2019-06-12 10:05:20.279209
Stop comment: type your message here

Wed Jun 12 18:40:57 2019

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Run : 233
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Start at 2019-06-12 18:40:34.500264

MUGAST 3alpha run pedestal supression
temperature -1 deg (trap) & -4.5 deg (must2) consigne 5 deg

without pedestal suppression

alpha source in front of cryogenic target, NOT AT TARGET POSITION !!!

Stop at 2019-06-13 09:06:36.277090
Stop comment:

Thu Jun 13 09:46:40 2019

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Run : 234
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Start at 2019-06-13 09:45:49.383074

Discard run
alpha source in front of cryogenic target, NOT AT TARGET POSITION !!!

Stop at 2019-06-13 09:47:06.006149
Stop comment: Discard this run

Thu Jun 13 09:47:39 2019

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Run : 235
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Start at 2019-06-13 09:47:19.893278

Discard run
alpha source in front of cryogenic target, NOT AT TARGET POSITION !!!

Stop at 2019-06-13 14:23:23.430392
Stop comment: type your message here

Wed Jun 19 12:02:07 2019

*** Run Time Calibrator FSC ***
- Run: 237
- MUVI: MUVI1
- Side : MUFEE X (Junction)
- Telescope: 1, 2, 3, 4

Wed Jun 19 12:24:43 2019

*** Run Time Calibrator FSC ***
- Run: 238
- MUVI: MUVI1
- Side : MUFEE Y (Ohmic)
- Telescope: 1, 2, 3, 4

Wed Jun 19 12:48:13 2019

*** Run Time Calibrator FSC ***
- Run: 239 - MUVI: MUVI2
- Side : MUFEE X (Junction)
- Telescope: 1, 2, 3, 4

Wed Jun 19 13:11:57 2019

*** Run Time Calibrator FSC ***
- Run: 240
- MUVI: MUVI2
- Side : MUFEE Y (Ohmic)
- Telescope: 1, 2, 3, 4

Wed Jun 19 13:36:41 2019

*** Run Time Calibrator FSC ***
- Run: 241
- MUVI: MUVI3
- Side : MUFEE X (Junction)
- Telescope: 1, 2, 3, 4

Wed Jun 19 14:02:04 2019

*** Run Time Calibrator FSC ***
- Run: 242
- MUVI: MUVI3
- Side : MUFEE Y (Ohmic)
- Telescope: 1, 2, 3, 4

Fri Jun 21 17:14:55 2019

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Run : 8
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Start at 2019-06-21 17:14:12.777585

test

Stop at 2019-06-21 17:16:36.895632
Stop comment:

Fri Jun 21 17:20:29 2019

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Run : 9
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Start at 2019-06-21 17:20:14.372415

Valerian n'a pas a courir ouf!!

Stop at 2019-06-21 17:21:30.206657
Stop comment: he is really not fit!

Stop at 2019-06-23 08:27:58.124593
Stop comment:

Sun Jun 23 08:29:14 2019

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Run : 10
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Start at 2019-06-23 08:03:31.361779

Firt run, VAMOS tunning

Brho0=1.16 Tm
DC pressure 5.8 mbar
IC pressure 120 mbar

Stop at 2019-06-23 10:08:04.932948
Stop comment: Entering to Change IC 5-6 Preamps

Sun Jun 23 09:06:29 2019

attached the energy measured in CIME and the calculated VAMOS settings

Attachment 1: vamos_setttings.jpg

Sun Jun 23 10:08:07 2019

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Run : 11
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Start at 2019-06-23 08:29:17.562468

VAMOS tunning

Brho0=1.16 Tm
DC pressure 5.8 mbar
IC pressure 120 mbar