In the Right Arm DAQ: 372ns Internal delay from the EDTM Master
To ND EDTM Slave from the backpanel of the EDTM Master: 15ns Short cables from EDTM back to RHRS PP 327ns Long RG-58 to Weldment PP 265ns Ellie's notes, below. ------ 607ns
Time Difference in EDTM pulses: B-L = 235ns This delay gets programmed into the RHRS EDTM.
Consideration for particle TOF and signal times to that point at which each EDTM pulse is inserted:
e' in Right arm (~1GeV) ---------------------- 87ns TOF 60ns Signal Cable (From PMT) ----- 147ns
n in HAND (~1GeV) -------------------- 27ns TOF (6.0m) 270ns Signal Cable (From PMT to x10 Amp) 2ns x10 Amp delay 8ns Lemo cable to discriminator ----- 307ns
Time difference: B-L = 160ns This delay gets programmed into the BigBite EDTM.
Will now work on the script that sets this up.
Ellie's notes: Starting out at the Patch Panel for Purple: 2ns Cable 7ns Discriminator 2ns Cable 6ns ECL-NIM-ECL 224ns + 2(x)ns Twisted Cable and Gate & Delay Generator where x is variable (minimum of 0) 4ns Cable 12ns Mixed Logic Fan In/Fan Out 8ns Cable ends at Discriminator Test Input ---- 265ns + 2(x)ns