NPS Calo How-To

• NPS Slow Controls
  • Idiosyncracies of the NPS Low Voltage power supply and controls

Setting the Calorimeter angle (SMHS carriage):

• NPS Survey Results
• SHMS angle (as defined in magnet gui) = Desired Calo Angle + Offset
  • Average offset 16.289 deg.
  • To set SHMS angle, use universal offset 16.27 deg. Corrections can be made in analysis
  • Setting the SHMS to angles less than 28 deg (NPS < 11.7 deg) requires tech support and two people in the hall

Calo Distance	SHMS Offset
3.0 m	16.3068 deg
4.0 m	16.2782 deg
6.0 m	16.3010 deg
8.0 m	16.2718 deg

vtp trigger configuration

vtp & v1495 Firmware update 8/23/2023

A brief guide to the structure of the FADC250/VTP/V1495 NPS Calorimeter DAQ

FermiLab Pub-97-092 on R4125 PMT performance (including lifetime)