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Highrate trigger design and initial threshold

20230123 threshold
Threshold is applied to the height of the waveform:
TS1: CerSum(200mv or 410 adc unit) & ShowerSum(70mv or 143 adc unit);
TS2: SC_D(20mv or 164 adc unit) & ShowerSum(70mv or 143 adc unit) & SC_B(15mv or 123 adc unit).
TS3: 2 out of these 3 inputs: CerSum(200mv or 410 adc unit), ShowerSum(50mv or 103 adc unit), SC_D(20mv or 164 adc unit);
TS4: ShowerSum(100mv or 205 adc unit)
TS5: SC_B(20mv or 164 adc unit).
TS6: CerA#,CerB#,CerC#,CerD#(15mv or 31 adc unit) for each Cherenkov individual input

Here is a link to the trigger design document: https://redmine.jlab.org/attachments/1733

20230220
TS1: CerSum(35mV or 72adc, 2pe) & ShowerSum(70mV or 143adc, 500MeV electron);
TS2: SC_D(35mV or 287adc) & SC_B(35mV or 287adc);
TS3: SC_D(35mV or 287adc) & SC_A(31mV or 254adc);
TS4: ShowerSum(140mV or 287adc, 1GeV electron);
or (70mV or 143adc, 500MeV electron);
or (15mV or 31adc, half MIP);
(120mV will keep 95% of 1-GeV electrons)
TS5: N/A.
TS6: CerA#,CerB#,CerC#,CerD#(5mV or 20 adc unit) for each Cherenkov individual input.

Here is a link to the trigger design document: https://redmine.jlab.org/attachments/1778

Updated by Jixie Zhang 12 months ago · 4 revisions