GEM performance data graphs

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IAC runs

ADC is connected,

Beam On: run 5496 as the detector is on 13:31:11 13:47:18 run 5497 as the detector is off 13:52:51


Run Number Beam Start Time End time Notes
5496 on 13:31:11 13:47:18 Detector is in operating voltage.
5497 on 13:52: 51 Detector is in off mode
5515 off 5:59: 46 6:27:43 Detector is in operating voltage.
5516 off 6:29:32 06:38:13 Detector is in off mode
5517 off 6:43:42 06:50:05 shutter is close
5518 off 06:55:59 07:06:57 Detector is in operating voltage.
5519 on 07:56:53 Detector is in operating voltage.
5520,21,22 on 09:38:36 Detector is in operating voltage.
5523 on 9:51:00 10:13:38 Detector is in operating voltage.
5524 on 10:14:35 PMT is added to ADC ch#14
5526 on 11:51:35 12:02:49 PMT TDC ch#0 GEM ch#2 ADC ch# 12 GEM Ch#14 PMT
5528 on 12:21:28 13:35:26
5529 on 13:36:28 14:44:37
5530 on 14:45:24 15:09:16
5531 on 15:09:41 15:20:03
5532 on 15:23:31 15:31:00
5532 on 15:23:31 16:04:31
5532 on 16:05:00 16:04:31
5537 on 16:22:00 16:27:03
5541 on 16:42:02 16:27:03

All the previous runs has a positive input to the ADC.

Tuesday 07/30/13
Run Number Beam Start Time End time Notes
5593 on 15:55:04 16:29:20 stable beam to the end of the run.
5594 on 16:36:19 17:03:52 stable beam to the end of the run.
5595 on 08:28:09 08:45:19 stable beam to the end of the run.
5596 on 08:47:16 10:06:37 stable beam to the end of the run.
5603 on but trasfered 13:31:30 14:38:02 shutter is close
Wednesday 08/21-22/13

- Detector voltage is 2300, 2800V GEM and Cathode successively. GEM has not any output to the TDC for 5773, 5774.



Run Number Beam Start Time End time Notes
5773 on beam on for 4-10s, overflow
5774 on beam on for 4-10s shutter is close, beam energy is 7.5 MeV
5775 on beam on for 4-10s shutter is open, beam energy is 7.5 MeV
5776 on beam on for 4-10s shutter is open, beam energy is 7.5 MeV
5777 on beam on for 4-10s shutter is close, beam energy is 7.5 MeV
5778 off 19:54:17 6:00:00 shutter is close 2.8, 3.4 G/C, Amp.6_6
5779 off 6:05:33 shutter is open 2.8, 3.4 G/C, Amp.6_6

09/23/13 BeamOn shutter close2.8_3.4kV

ADC : GEM CH#5, Scintillator 11

TDC: GEM CH#27,31 (just 31 gives time hits but it is a kind of weird!!!!!), Scintillator 29

PS-ADC: GEM CH#15

Run Number Beam Start Time End time Notes
6087 on 11:58:23 12:56:30 , ADC does not collect charge from the scintillator 3.4,2.8kV
6088 on 12:56:58 beam on, 3.4,2.8kV
6089 on 13:41:15 14:19:01 , 2.8,2.8kV, run included a beam off then beam on again.
6090 on 14:31:39 14:34:45 3.4,2.8kV
6091 on 14:36:29 15:20:07 3.4,2.8kV
6092 on 15:22:16 15:41:36 3.4,2.8kV
6093 on 15:42:46 16:27:24 3.4,2.8kV
6094 on 16:28:28 16:58:48 3.4,2.8kV, high sci. voltage that saturate the ADC, b

09/24/13 BeamOn shutter open 2.8_3.4kV

ADC : GEM CH#5, Scintillator 11

TDC: GEM CH#27,31 (just 31 gives time hits but it is a kind of weird!!!!!), Scintillator 29

PS-ADC: GEM CH#15

Run Number Beam Start Time End time Notes
6095 on 09:49:48 10:35:32 beam turned off twice for a short time
6096 on 10:36:06 13:41:58 scin. ADC signal without Amplification
6097 on 13:42:41 16:49:59
6098 on 16:50:11 17:08:43

09/25/13 BeamOn shutter open 3.3,2.7kV

ADC : GEM CH#5, Scintillator 9,11

TDC: GEM CH#27,31,28 , Scintillator 29

PS-ADC: GEM CH#15

Run Number Beam Start Time End time Notes
6100 on 08:17:48 08:31:49 sci. ampl. is changed for qdc.
6101 on 08:48:59 09:04:14
6102 on 09:08:27 09:53:58 sci. ADC ch#9
6103 on 09:55:21 10:05:19 beam is off
6104 on 10:06:48 10:54:21
6105 on 10:55:08 11:43:05
6106 on 11:44:06 13:34:49
6113 on 16:28:10 16:56:49 spec. amp. 500

09/25/13 BeamOn shutter open 2.6_3.2kV

ADC : GEM CH#5, Scintillator 9

TDC: GEM CH#27,31,28 , Scintillator 29

PS-ADC: GEM CH#15

Run Number Beam Start Time End time Notes
6107 on 13:37:21 13:51:33 peak sensing at low channel number
6108 on 13:52:19 14:08:42 spectroscopic amplifier 100->200 coarse amp.
6109 on 14:09:21 14:55:48 spectroscopic amplifier 200->500 coarse amp.
6110 on 14:56:39 15:26:26 spectroscopic amplifier 200->500 coarse amp.
6111 on 15:30:40 15:56:29 spectroscopic amplifier 200->500 coarse amp.
6112 on 15:57:18 16:25:24 spectroscopic amplifier 200->500 coarse amp.



09/26/13 BeamOn shutter close 2.7_3.3kV

ADC : GEM CH#5, Scintillator 9

TDC: GEM CH#27,31,28 , Scintillator 29

PS-ADC: GEM CH#15

Run Number Beam Start Time End time Notes
6118 on 07:27:40 07:41:06 peak sensing at ch#100, but ADC still has two peaks.ch# 1374 and ch#1553! voltage of GEM = voltage of cathode = 2.7kV, osciloscope does not show any signal for GEM.
6122 on 08:22:59 09:01:28
6123 on 09:03:21 09:44:26
6124 on 09:51:51 10:22:48
6125 on 10:26:06 10:59:21 spec. amplif. changed 15-> 7.1 fine amp. 200 coarse overflow for Peak sensing
6126 on 11:02:13 11:15:37 spec. amplif. changed 7.1-> 7.4 fine amp. 200 coarse overflow disappeared
6127 on 11:17:04 11:51:21
6128 on 11:52:28 12:51:03
6129 on 12:52:02 13:14:32



09/26/13 BeamOn shutter close 2.6_3.2kV

ADC : GEM CH#5, Scintillator 9

TDC: GEM CH#27,31,28 , Scintillator 29

PS-ADC: GEM CH#15

Run Number Beam Start Time End time Notes
6133 on 13:21:00 13:24:49 peak sensing at ch#100,
6134 on 13:26:23 13:30:20 spec. amp 200->100
6136 on 13:33:18 13:43:14 9' 56" spec. amp 200->100 fine from 7.4 ->10
6138 on 13:47:19 13:57:10 10' 9"
6140 on 14:00:55 14:10:55 10'



09/26/13 BeamOn shutter close 2.7_3.3kV

ADC : GEM CH#5, Scintillator 9

TDC: GEM CH#27,31,28 , Scintillator 29

PS-ADC: GEM CH#15

Run Number Beam Start Time End time Notes
6142 on 14:14:34 14:24:37 10' 3" differetnce between the peak of the two measurements is not enough to repeat using the new spc. amp new settings but the previous settings overflow the peak sensing!!!
6144 on 14:29:47 14:40:35 10' 48"
6145 on 14:44:10 14:55:24 11' 14"
6146 on 14:56:14 15:07:50



IAC-Peak Sensing Measurements 09/01/13

IAC-Peak Sensing Measurements


IAC-QDC Measurements 09/18/13

IAC-QDC Measurements