GEM performance data graphs
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 |
09/01/13
Detector voltage is 2.8, 3.4 kV for cathode and GEM.
Run Number | Notes | |
5869 | shutter open x | |
5872 | shutter close x | |
5873 | shutter open x | |
5876 | shutter open x | |
5877 | shutter close x | |
5884 | shutter close 1 | |
5885 | shutter open 1 |
09/05/13
Run Number | Amp level | discriminator level | Notes | |
5925 | 50, 4 | 3.6 | shutter close | |
5926 | 50, 4 | 3.6 | shutter open | |
5927 | 100 | 3.6 | shutter open | |
5928 | 200 | 3.6 | shutter open, high amp level | |
5929 | 100, 10 | 3.6 | shutter open high amp level | |
5930 | 100, 7 | 3.6 | shutter open | |
5936 | 100, 7 | 0.1 | shutter open, noise peak channel 74 | |
5937 | 100, 7 | 0.1 | shutter open, V_cath = V_GEM,noise peak channel 74 | |
5948 | 100, 7 | 1.15 | shutter open, detector is on, no signal overlapping, reached to te signal highest rate, with almost 100% signal to noise ratio. |
The following run has the same setting as the last run, unless there is achange written in the notes.
Cath_3400 GEM_2800V
Run Number | start time | end time | shutter | Notes |
5948 | 14:22:14 | 14:36:09 | open | |
5949 | 15:02:43 | 15:19:59 | open | |
5950 | 15:20:42 | 15:19:59 | open |