HVgui

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

PREX Main<< HOW TOs

Nominal Set Points for Running - Dec 15th

SAMs: Ca48: https://logbooks.jlab.org/entry/3753866

Main Det: Ca48: https://logbooks.jlab.org/entry/3753680

SAMs Nominal Set Points for Running - Dec 13th

SAMs: Ca48: https://logbooks.jlab.org/entry/3753239

Nominal Set Points for Running - Dec 12th

Main Det: Ca48: https://logbooks.jlab.org/entry/3752587

Nominal Set Points for Running - July 31th

Main Det: D9-Pb-D10: https://logbooks.jlab.org/entry/3712955

Nominal Set Points for Running - July 25th

SAMs: https://logbooks.jlab.org/entry/3711306

Main Det: DI-Pb-DJ target: https://logbooks.jlab.org/entry/3709484

Nominal Set Points for Running - July 17th

SAMs: DA-208Pb-DB target: https://logbooks.jlab.org/entry/3705982


Nominal Set Points for Running - July 10th

Main Det: DI-Pb-DJ target: https://logbooks.jlab.org/entry/3701529

Nominal Set Points for Running - July 8th

DI-Pb-DJ target: https://logbooks.jlab.org/entry/3700206
Carbon 1% target: https://logbooks.jlab.org/entry/3700243

Nominal Set Points for Running - June 28th

Main and AT: https://logbooks.jlab.org/entry/3696339
SAMs: https://logbooks.jlab.org/entry/3696337

VDC High Voltage

Note! The VDCs are usually turned OFF, except for specialized runs like Qsq, which are run by experts. Also the HV is controlled by the "hvg" Java gui, not on the General Tools screen.

L-HRS rpi8, slot 7, channels 0 and 3. value = 3500

R-HRS rpi4, slot 14, channels 5, 7. value = 3500.

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

Normally the HV gui is already running on the hapc3 window on the far left of the front room console.

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_1
    • L0.3 channel is for S3_2
    • L0.4 channel is for S3_3
  • 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 (Turn this OFF before going to high current (production) running and set the HV to 0.0V)
    • 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

Normally the HV gui is already running on the hapc3 window on the far left of the front room console.

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_1
    • L0.3 channel is for S3_2
    • L0.4 channel is for S3_3
  • 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 (Turn this OFF before going to high current (production) running and set the HV 0.0V)
    • 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)
    • L10.5 channel is for VDC1
    • L10.7 channel is for VDC2

For Experts

Hall A op manual on HV