• Troubleshooting (note: link is working again)

  • In the production mode of this experiment, the PVDIS DAQ is a combination of the PVDIS electronics and the HAPPEX DAQ. The HAPPEX DAQ is used to readout data. Periodically, we also use the HRS data acquisition system for systematic studies.

  • HAPPEX/PVDIS Data Acquisition (Updated [date])

    • Use the checklist when switching DAQs
    • Cold start
    • Monitoring HAPPEX systems
    • Turning Dithering on/off
    • Rebooting HAPPEX crates
    • List of HAPPEX crates
    • Running CODA
    • Switching CODA config (between Happex & HapNoQweak)

  • HAPPEX Data Analysis (Updated [date])

    • Starting Online Data Monitor
    • Starting prompt analysis

  • Spectrometer

    • Bringing up the Alarm Handler
    • Bringing up the HAC control window
    • Changing momentum setting of HRS and Septum
    • Reset Q1 of Left or Right HRS

  • Target

    • The best reference for all things target is The Hall A Cryogenic Target home page
    • Checking target temperature
    • New procedure for target IOC reboot (New!)

  • Spectrometer Data Acquisition

    • Use the checklist when switching DAQs
    • Cold start
    • Mapping of ROCs to portserver and IP
    • Spectr. DAQ Triggers for HAPPEX
    • Rebooting HRS crates
    • Running CODA
    • Starting xscaler (HRS) and checking trigger rate

  • Spectrometer Data Analysis

    • Online analysis

  • Hall A Detectors (Updated [date])

    • List of Detectors
    • Detector High Voltages
    • VDC check and HV

  • Compton Polarimeter

    • Compton Polarimeter Home page.
    • Compton Data-Taking instructions.
    • Compton Logbook (analysis results)

  • Helicity Controls (Updated [date])

    • Changing the Half-WavePlate
    • PITA Scan
    • HAPPEX Charge Asymmetry Feedback

  • Miscellaneous

    • Bringing up the Beamtime Counting Table
    • Plotting time dependences of EPICS variables
    • Printing in the counting house
    • (Updated 9-23-09)Starting HALOG
    • Starting spot++ and checking the raster

  • Other Problems

    • If you can't solve a problem