| ID |
Date |
Author |
Type |
Category |
Subject |
|
42
|
16 Jul 2019 03:51 |
Marco Rescigno | Routine | General | run 773, scintillation events triggering on all 24 channels |
Majority of 5, threshold at 1000 ADC count, 24 channels enabled (16 trigger signals) 100 Hz, 30 us window.
38 k events recorded. |
|
43
|
16 Jul 2019 03:53 |
Marco Rescigno | Routine | General | run 774, scintillation events triggering on all 24 channels and 200 us window |
Majority of 8, threshold at 1000 ADC count, 24 channels enabled (16 trigger signals) 10 Hz, 200 us window, trigger at 9.5 microseconds.
10 k events recorded.
By direct inspection pileup seems at the 10 % level in the 200 us window. |
| Attachment 1: PileupEvent.png
|
|
|
56
|
01 Nov 2019 09:06 |
Alex Kish | Routine | General | run 826, zero-field with gas pocket |
Gas pocket: ON
Fields: OFF
Threshold: 400 ADCc below baseline
Threshold extend: 5x16 = 80ns
Comment: Noise appeared on event 4200 |
|
60
|
01 Nov 2019 10:56 |
Alex / Marco | Routine | General | run 829, with nominal fields |
Gas pocket: ON
Fields: ON
Threshold: 200 ADCc below baseline
Threshold extend: 5x16 = 80ns
Comment: Noise appeared on event 48500 |
|
61
|
03 Nov 2019 07:46 |
Alex Kish | Routine | General | run 833, with nominal fields |
Gas pocket: ON
Fields: ON (wire gate 3780 V, 1st ring 4180 V, cathode 6180 V)
Threshold: 200 ADCc below baseline
Threshold extend: 5x16 = 80ns
TPC Pressure: 242 mbarg
SiPM HV: 65V
Comment: noise conditions good, 1e5 evts |
|
62
|
03 Nov 2019 08:15 |
Alex Kish | Routine | General | run 834, drift field ON, extraction OFF |
Gas pocket: ON
Fields: drift field ON (1st ring 4180 V, cathode 6180 V), extraction field OFF (wire gate 0 V)
Threshold: 200 ADCc below baseline
Threshold extend: 5x16 = 80ns
TPC Pressure: 244 mbarg
SiPM HV: 65 V
Comment: noise conditions good, 1e5 evts |
|
63
|
03 Nov 2019 08:49 |
Alex Kish | Routine | General | run 835, zero drift field |
Gas pocket: ON
Fields: drift field OFF (1st ring 0 V, cathode 0 V), extraction field OFF (wire gate 0 V)
Threshold: 200 ADCc below baseline
Threshold extend: 5x16 = 80ns
TPC Pressure: 244 mbarg
SiPM HV: 65 V
Comment: noise conditions good, 1e5 evts |
|
64
|
03 Nov 2019 09:17 |
Alex Kish | Routine | General | run 836, zero drift field |
Gas pocket: ON
Fields: drift field OFF (1st ring 0 V, cathode 0 V), extraction field OFF (wire gate 0 V)
Threshold: 200 ADCc below baseline
Threshold extend: 5x16 = 80ns
TPC Pressure: 244 mbarg
SiPM HV: 50 V (noise run)
Comment: noise conditions good. Thresholds are too high, rate below 1 event/sec, only few events saved. Postpone to next day. |
|
69
|
04 Nov 2019 09:02 |
Alex/Yi/Ben | Routine | General | run 865, fields on |
Gas pocket: ON
Fields: wire gate 3780 V, 1st ring: 4500 V, cathode: 7000 V
Threshold: 1000 ADCc below baseline
Trace length: 200us total, 100 us pre-trigger
Threshold extend: 5x16 = 80ns
TPC Pressure: 300 mbarg
SiPM HV: 65 V (noise run)
Comment: noise conditions good. Rate ~30Hz. Look for S2s! |
|
71
|
05 Nov 2019 04:48 |
Yi Wang | Routine | General | Run 873 |
Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar)
Fields: drift 500V/cm extraction 3.78kV/cm
Threshold: 1600 ADC below baseline
Trace length: 200us total, 100 us pre-trigger
Threshold extend: 5x16 = 80ns
TPC Pressure: >200 mbarg
SiPM HV: 65 V
Comment: try to trigger on S2 |
|
72
|
05 Nov 2019 04:57 |
Yi Wang | Routine | General | Run 875 |
Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar)
Fields: OFF
Threshold: 1600 ADC below baseline
Trace length: 200us total, 100 us pre-trigger
Threshold extend: 5x16 = 80ns
TPC Pressure: >200 mbarg
SiPM HV: 65 V
Comment: compare to Run 873 |
|
73
|
05 Nov 2019 05:09 |
Yi Wang | Routine | General | Run 877 |
Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar)
Fields: drift 200 V/cm, extraction 2.8 kV/cm
Threshold: 1600 ADC below baseline
Trace length: 200us total, 100 us pre-trigger
Threshold extend: 5x16 = 80ns
TPC Pressure: >200 mbarg
SiPM HV: 65 V
Comment: compare to Run 873, 875 |
|
75
|
05 Nov 2019 06:36 |
Alex / Ben | Routine | General | Run 885, baseline run with SiPMs at 65V |
Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar)
Fields: drift 200 V/cm, extraction 2.8 kV/cm
Threshold: external clock, 50Hz
Trace length: 500us total, 100 us pre-trigger
Threshold extend: 5x16 = 80ns
TPC Pressure: >460 mbarg
SiPM HV: 65 V
Comment: DAQ rate ~25Hz |
|
76
|
05 Nov 2019 06:42 |
Alex / Ben | Routine | General | Run 886, baseline run with SiPMs at 50V |
Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar)
Fields: drift 200 V/cm, extraction 2.8 kV/cm
Threshold: external clock, 50Hz
Trace length: 500us total, 100 us pre-trigger
Threshold extend: 5x16 = 80ns
TPC Pressure: >460 mbarg
SiPM HV: 50 V
Comment: data rate capped at 25Hz due to limited speed of writing on disk. 1ms traces are not possible yet. |
|
77
|
05 Nov 2019 06:55 |
Alex / Ben | Routine | General | Run 888, laser run with SiPMs at 65V |
Laser intensity: MAX
Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar)
Fields: drift 200 V/cm, extraction 2.8 kV/cm
Threshold: external clock (laser NIM), 500Hz (laser set to 1kHz)
Trace length: 500us total, 100 us pre-trigger
Threshold extend: 5x16 = 80ns
TPC Pressure: >460 mbarg
SiPM HV: 65 V
Comment: |
|
78
|
05 Nov 2019 06:56 |
Alex / Ben | Routine | General | Run 889, laser run with SiPMs at 67V |
Laser intensity: MAX
Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar)
Fields: drift 200 V/cm, extraction 2.8 kV/cm
Threshold: external clock (laser NIM), 500Hz (laser set to 1kHz)
Trace length: 12us total, 5us pre-trigger
Threshold extend: 5x16 = 80ns
TPC Pressure: >460 mbarg
SiPM HV: 65 V
Comment: |
|
79
|
05 Nov 2019 07:05 |
Alex / Ben / Sam | Routine | General | Run 891, laser run with SiPMs at 67V |
Laser intensity: MIN
Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar)
Fields: drift 200 V/cm, extraction 2.8 kV/cm
Threshold: external clock (laser NIM), 500Hz (laser set to 1kHz)
Trace length: 12us total, 5us pre-trigger
Threshold extend: 5x16 = 80ns
TPC Pressure: >460 mbarg
SiPM HV: 67 V
Comment: |
|
80
|
05 Nov 2019 07:23 |
Alex / Ben / Sam | Routine | General | Run 893, laser run with SiPMs at 65V, 30us trace |
Laser intensity: MAX
Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar)
Fields: drift 200 V/cm, extraction 2.8 kV/cm
Threshold: external clock (laser NIM), 500Hz (laser set to 1kHz)
Trace length: 30us total, 5us pre-trigger
Threshold extend: 5x16 = 80ns
TPC Pressure: >460 mbarg
SiPM HV: 65 V
Comment: |
|
81
|
05 Nov 2019 07:24 |
Alex / Ben / Sam | Routine | General | Run 892, laser run with SiPMs at 65V |
Laser intensity: MIN
Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar)
Fields: drift 200 V/cm, extraction 2.8 kV/cm
Threshold: external clock (laser NIM), 500Hz (laser set to 1kHz)
Trace length: 12us total, 5us pre-trigger
Threshold extend: 5x16 = 80ns
TPC Pressure: >460 mbarg
SiPM HV: 65 V
Comment: |
|
82
|
05 Nov 2019 07:26 |
Alex / Ben / Sam | Routine | General | Run 894, laser run with SiPMs at 67V, 30us trace |
Laser intensity: MAX
Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar)
Fields: drift 200 V/cm, extraction 2.8 kV/cm
Threshold: external clock (laser NIM), 500Hz (laser set to 1kHz)
Trace length: 30us total, 5us pre-trigger
Threshold extend: 5x16 = 80ns
TPC Pressure: >460 mbarg
SiPM HV: 67 V
Comment: |