Check of Plastic and NaI veto detectors and DACQ settings


Plastic: 10x200x450mm**3, PMT: H1161, HV: -1200V, Anode2
Very small and short signal: width: 20ns, rise: 10ns, amplitude up to 10mV
We decided to put an amplifier to have more flexibility
Amp: Ortec 474 TFA, G: 10xmax, INT=200ns, DIF: 100ns
Signal: width: 200ns, height: 100mV
DACQ Trigger & EFIR: P=2, G:2

NaI: 2"x4"x16", PMT: ?, VD: 1410 (ORNL), HV: +800V
Signal: width: 400ns height: 15mV
DACQ trigger and EFIR: P=20, G=20

File: 161011_2330_PlasticNaI_137Cs.root
File: 161011_2335_PlasticNaI_60Co.root

Photo of the arrangement.
137Cs spectrum of both detectors.