09/23-27/2013
09/23/13 BeamOn shutter close2.8_3.4kV
ADC : GEM CH#5, Scintillator 11
TDC: GEM CH#27,31 , 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 | 43' 38" 3.4,2.8kV |
| 6092 | on | 15:22:16 | 15:41:36 | 19' 20" 3.4,2.8kV |
| 6093 | on | 15:42:46 | 16:27:24 | 44 38" 3.4,2.8kV |
| 6094 | on | 16:28:28 | 16:58:48 | 30' 20" 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 |
| 6127 | on | 11:17:04 | 11:51:21 | overflow for Peak sensing |
| 6128 | on | 11:52:28 | 12:51:03 | overflow for Peak sensing |
| 6129 | on | 12:52:02 | 13:14:32 | overflow for Peak sensing
|
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' |
| 6147 | on | 15:10:12 | 15:22:20 | spec. amp fine 10->5 |
| 6148 | on | 15:23:16 | 15:38:57 | spec. amp fine 5->7.4 |
| 6149 | on | 15:40:40 | 15:51:23 | |
| 6151 | on | 15:53:13 | 16:04:06 |
|
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 | 11' 36" |
09/26/13 BeamOn shutter close 2.8_3.4kV
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 |
| 6152 | on | 14:12:41 | 16:23:54 | 11' 13" |
| 6153 | on | 16:24:45 | 16:34:37 | 10' 48" |
| 6156 | on | 16:39:16 | 16:49:13 | 9' 57" |
| 6157 | on | 16:49:35 | 17:07:14 | 17'39" |
09/27/13 BeamOn shutter open 2.8_3.4kV
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 |
| 6159 | on | 08:38:06 | 08:47:59 | 9' 53" |
| 6160 | on | 08:48:27 | 09:10:11 | 21 43" |
| 6161 | on | 09:11:10 | 09:21:25 | 10' 15" |
| 6162 | on | 09:23:23 | 09:33:18 |
|
09/27/13 BeamOn shutter open 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 |
| 6163 | on | 09:34:52 | 09:42:01 | |
| 6164 | on | 09:42:34 | 09:59:17 | |
| 6165 | on | 09:59:49 | 10:28:55 | |
| 6166 | on | 10:29:31 | 10:45:57 |
|
09/27/13 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 |
| 6167 | on | 10:47:49 | 11:00:06 | |
| 6168 | on | 11:00:46 | 11:13:33 | |
| 6169 | on | 11:14:31 | 11:24:36 | |
| 6170 | on | 11:25:15 | 11:29:34 | |
| 6171 | on | 11:30:22 | 11:41:52 |
09/27/13 BeamOn shutter open 2.7_3.4kV
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 |
| 6172 | on | 11:45:35 | 11:55:27 | |
| 6173 | on | 11:55:49 | 12:03:25 |
09/27/13 BeamOn shutter open 2.7_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 |
| 6174 | on | 12:04:42 | 12:13:11 | |
| 6175 | on | 12:13:30 | 12:22:40 |
09/27/13 BeamOn shutter open 2.7_3.1kV
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 |
| 6176 | on | 12:24:58 | 12:50:30 |
09/27/13 BeamOn shutter open 2.8_3.4kV
TDC settings is changed for the scintillator.
| Run Number | Beam | Start Time | End time | Notes |
| 6184 | on | 13:55:53 | 15:45:08 | |
| 6185 | on | 15:45:46 | 16:00:06 | |
| 6186 | on | 16:02:10 | 16:05:10 | |
| 6187 | on | 16:06:26 | 16:19:15 | |
| 6188 | on | 16:20:26 | 17:14:21 | shutter is close, ended 4 min. after the beam is off |
Analysis
Main points:
- TDC settings, comon start, common stop mode.
- TDC range.
- changing the TDC settings. and source of TDC hits. (logic fold and dual timer and the effect of the delay)
- The difference in time scale between the oold and the new TDC settings (scintillator time)
- write a program for direct analysis of neutron spectrum based on TDC and QDC, and TDC and Peak sensing ADC.
- The best best GEM operating voltage as the beam is ON.
- difference between the TDC histograms in the two ntuple root files.
ADC Charge calibration
Using Stanford pulse generator, a pulse is injected into the ADC with an appropriate amplitude to avoid the ADC saturation. pulse width is 36.4 +_ 0.4 us.
| Run Number | pulse amplitude (mV) | Ch# |
| 6193 | 516+_ 4 | 2150 +_ 3 |
| 6194 | 624+_6 | 2929+_ 4 |
| 6195 | 724 +_ 8 | 3240+_ 4 |
| 6198 | 816+_ 8 | 3587+_ 2 |
| 6199 | 920 +_ 4 | 3.855+_ 6 |