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ID Date Author Type Category Subject
  90   07 Nov 2019 02:07 SamRoutineGeneralRun 963 Laser Run with SiPMs at 65V, 12us trace

Laser Intensity: MAX

Threshold: external clock (laser NIM), laser set to 1kHz

Trace length: 12us, 5us pre-trigger

SIPM HV: 65V

  89   06 Nov 2019 12:28 Ben SmithProblem FixedGeneralEvening data taking, purity check
> Not sure if the trigger threshold is correctly set, there is an error:

Sorry, I made a change to the baseline calculation and forgot to update the threshold tool. It's updated now.

The thresholds currently seem to be set to 12801 - this is 2699 below the nominal baseline of 15500.
  88   06 Nov 2019 11:22 Yi WangRoutineGeneralEvening data taking, purity check

Not sure if the trigger threshold is correctly set, there is an error:

Traceback (most recent call last):
  File "/home/dsproto/online/dsproto_analyzer/threshold_tool.py", line 71, in <module>
    main()
  File "/home/dsproto/online/dsproto_analyzer/threshold_tool.py", line 47, in main
    (mean, rms) = fit_res
ValueError: too many values to unpack (expected 2)

the trigger threshold for all the runs in this Elog is 2699 ADCc below the baseline (see Elog 89)
 

Run 943

Gas pocket: ON (thinkness 7mm)

Fields: drift 200 V/cm, extraction 3.78 kV/cm

Threshold: 1600 ADC below baseline

Trace length: 200us total, 100 us pre-trigger

TPC Pressure: >200 mbarg

SiPM HV: 65 V

Number of events: 10k

 

Run 945

Gas pocket: ON (thinkness 7mm)

Fields: drift 200 V/cm, extraction 3.78 kV/cm

Threshold: 1000 ADC below baseline

Trace length: 200us total, 100 us pre-trigger

TPC Pressure: >200 mbarg

SiPM HV: 65 V

Number of events: 10k

 

Run 946

Gas pocket: ON (thinkness 7mm)

Fields: drift 200 V/cm, extraction 2.8 kV/cm

Threshold: 1000 ADC below baseline

Trace length: 200us total, 100 us pre-trigger

TPC Pressure: >200 mbarg

SiPM HV: 65 V

Number of events: 10k

 

Run 948

Gas pocket: ON (thinkness 7mm)

Fields: drift 200 V/cm, extraction 2.8 kV/cm

Threshold: 1600 ADC below baseline

Trace length: 200us total, 100 us pre-trigger

TPC Pressure: >200 mbarg

SiPM HV: 65 V

Number of events: 10k

 

Run 949

Gas pocket: ON (thinkness 7mm)

Fields: drift 500 V/cm, extraction 3.78 kV/cm

Threshold: 1600 ADC below baseline

Trace length: 200us total, 100 us pre-trigger

TPC Pressure: >200 mbarg

SiPM HV: 65 V

Number of events: 10k

 

Run 951

Gas pocket: ON (thinkness 7mm)

Fields: drift 500 V/cm, extraction 3.78 kV/cm

Threshold: 1000 ADC below baseline

Trace length: 200us total, 100 us pre-trigger

TPC Pressure: >200 mbarg

SiPM HV: 65 V

Number of events: 10k

 

Run 952

Gas pocket: ON (thinkness 7mm)

Fields: OFF

Threshold: 1000 ADC below baseline

Trace length: 200us total, 100 us pre-trigger

TPC Pressure: >200 mbarg

SiPM HV: 65 V

Number of events: 10k

 

Run 954

Gas pocket: ON (thinkness 7mm)

Fields: OFF

Threshold: 1600 ADC below baseline

Trace length: 200us total, 100 us pre-trigger

TPC Pressure: >200 mbarg

SiPM HV: 65 V

Number of events: 10k

  87   06 Nov 2019 05:58 Ben SmithConfigurationHardwareCAEN VME Crate DHCP
The CAEN VME crate now gets its IP address from the ds-proto-daq DHCP server. To do this, I set the IP address of the crate to 0.0.0.0 (using the front panel interface) then reset the crate (not just a power cycle - pressing the reset button is required).

I am now able to ping the crate, but am NOT able to load the webpage it is supposed to serve (I just get a "connection refused"). I can't see any configuration settings that would disable the webpage or would cause it to be served on a non-standard port. I may have missed something though.
  86   05 Nov 2019 23:58 Yi WangRoutineGeneralMorning data taking, purity check

Run 917

Gas pocket: ON (thinkness 7mm)

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

Number of events: 10k

 

Run 918

Gas pocket: ON (thinkness 7mm)

Fields: drift 200 V/cm, extraction 3.78 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

Number of events: 10k

 

Run 919

Gas pocket: ON (thinkness 7mm)

Fields: drift 500 V/cm, extraction 3.78 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

Number of events: 10k

 

Run 920

Gas pocket: ON (thinkness 7mm)

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

Number of events: 10k

 

  85   05 Nov 2019 08:32 Alex / SamRoutineGeneralRun 900, Edrift 500V/cm

Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar) [Edgar\Yi: correction: OFF (during recirculation tpc pressure about 400 mbar)]

Fields: drift 500 V/cm, extraction 2.8 kV/cm (wire grid 3780 V, 1st ring 2780 V, cathode 7780 V) [Yi: 1st ring setting is incorrect, inverted fied between wire grid and field cage ring]

Threshold: 400 ADC below baseline (baselines equalized to 15500)

Trace length: 200us total, 100 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure: >200 mbarg

SiPM HV: 65 V

Comment:

  84   05 Nov 2019 08:23 Alex / SamRoutineGeneralRun 899, Edrift 100V/cm

Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar) [Edgar\Yi: correction: OFF (during recirculation tpc pressure about 400 mbar)]

Fields: drift 100 V/cm, extraction 2.8 kV/cm (wire grid 3780 V, 1st ring 3580 V, cathode 3780 V) [Yi: 1st ring setting is incorrect, inverted fied between wire grid and field cage ring]

Threshold: 400 ADC below baseline (baselines equalized to 15500)

Trace length: 200us total, 100 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure: >200 mbarg

SiPM HV: 65 V

Comment:

  83   05 Nov 2019 08:14 Alex / SamRoutineGeneralRun 898, Edrift 200V/cm

Gas pocket: ON (thinkness unknown, since the TPC pressure is >200 mbar) [Edgar\Yi: correction: OFF (during recirculation tpc pressure about 400 mbar)]

Fields: drift 200 V/cm, extraction 2.8 kV/cm (wire grid 3780 V, 1st ring 4180 V, cathode 6180 V) 

Threshold: 400 ADC below baseline (baselines equalized to 15500)

Trace length: 200us total, 100 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure: >200 mbarg

SiPM HV: 65 V

Comment:

  82   05 Nov 2019 07:26 Alex / Ben / SamRoutineGeneralRun 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:

  81   05 Nov 2019 07:24 Alex / Ben / SamRoutineGeneralRun 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:

  80   05 Nov 2019 07:23 Alex / Ben / SamRoutineGeneralRun 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:

  79   05 Nov 2019 07:05 Alex / Ben / SamRoutineGeneralRun 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:

  78   05 Nov 2019 06:56 Alex / BenRoutineGeneralRun 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:

  77   05 Nov 2019 06:55 Alex / BenRoutineGeneralRun 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:

  76   05 Nov 2019 06:42 Alex / BenRoutineGeneralRun 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.

  75   05 Nov 2019 06:36 Alex / BenRoutineGeneralRun 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

  74   05 Nov 2019 05:43 Ben SmithRoutineSoftwareNew script to equalize baselines
I've written a new script that will set all the V1725 baselines to the same level, by adjusting the DAC values. All the baselines are currently set to 15500.

The script is documented in the "Adjusting V1725 baselines" section of https://bitbucket.org/ttriumfdaq/dsproto_daq/wiki/Midas%20Software%20Operation.

I also added a new option to the "adjust self trigger threshold" script that allows the user to specify an exact ADC threshold (rather than doing it in relation to baseline). E.g. if you know that the baselines are all currently 15500, and you want to set a threshold ~200mV below, you could set a self-trigger threshold of 13900 (1mV is ~ 8ADC).
  73   05 Nov 2019 05:09 Yi WangRoutineGeneralRun 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

  72   05 Nov 2019 04:57 Yi WangRoutineGeneralRun 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

  71   05 Nov 2019 04:48 Yi WangRoutineGeneralRun 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

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