HVgui

In the process of editing and updating this page. Please contact Juliette Mammei crowder@jlab.org with questions or suggestions.

PREX Main<< HOW TOs

For shift workers

Check VDC safety before turn on the VDC HVs!

• VDC safety:

Don't turn on VDC HV before checking rates. Use LHRS and RHRS T1 (cross check two HRSs).
< 500 kHz safety
< ~200 kHz good data (100kHz best)

To launch the HV GUI

Image 1

• Log in as aslow@adaqsc (ask for password/probably no need of password)
• cd into slowc directory
• run ./hvs RIGHT for RHRS HV GUI
• run ./hvs LEFT for LHRS HV GUI
  • • Note: If the HV GUI is already running in some other computer, it will ask if you want to kill the running process (see Image 1). You can type y and hit Enter. This will just kill the pre-existing GUI but will not affect HV settings and status.
• Choose the desired slot

LHRS Detectors HV

Image 2:Values in the image are not necessarily the correct values

• Make sure that the top left tab says rpi8 (see Image 2)
• To check scintillator HVs goto slot0 (i.e. S0)
  • L0.0 channel is for S0A
  • L0.1 channel is for S0B
  • L0.2 channel is for S3
• To check Main and At detector HVs goto slot1 (i.e. S1)
  • L1.0 channel is for UP-Quartz
  • L1.1 channel is for DN-Quartz
  • L1.2 channel is for AT-IN
  • L1.3 channel is for AT-OUT
• To check VDC HVs goto slot7 (i.e. S7)
  • L6.0 channel is for VDC1
  • L6.3 channel is for VDC2

RHRS Detectors HV

Image 3::Values in the image are not necessarily the correct values

• Make sure that the top left tab says rpi4 (see Image 3)
• To check scintillator HVs goto slot0 (i.e. S0)
  • L0.0 channel is for S0A
  • L0.1 channel is for S0B
  • L0.2 channel is for S3
• To check Main and At detector HVs goto slot1 (i.e. S1)
  • L1.0 channel is for UP-Quartz
  • L1.1 channel is for DN-Quartz
  • L1.2 channel is for AT-IN
  • L1.3 channel is for AT-OUT
• To check SAM HVs goto slot4 (i.e. S4)
  • L4.0 channel is for SAM1
  • L4.1 channel is for SAM2
  • L4.2 channel is for SAM3
  • L4.3 channel is for SAM4
  • L4.4 channel is for SAM5
  • L4.5 channel is for SAM6
  • L4.6 channel is for SAM7
  • L4.7 channel is for SAM8
• To check VDC HVs goto slot14 (i.e. S14)
  • L14.5 channel is for VDC1
  • L14.7 channel is for VDC2

For Experts

Hall A op manual on HV