Notes from Local Meeting on April 8, 2004

• General Notes

  • Detector Supports
  • Have been redesigned/rebuilt
  • Collimators
  • Have also been rebuilt
  • Profile Scanner
  • Connectors have been completed, will be sent to UMass

• Compton (Tim)

  • Need to recalibrate the laser polarization
  • Some of the DAQ controls have been transferred to EPICS
  • Will be able to revert back to old configuration if testing is not successful
  • Need to check Compton's compatability with Coil Modulation

• Optics Calibration (Tim)

  • Is coming around
  • Tough to include outside foils.

• Lumi (Hachemi, Bob)

  • Finished working on Front and Back Lumi
  • BLumi shows some pedestals in the range of 2.4 to 4.9 adc channels
  • A long run (2.0GBytes) shows very consistent pedestals (signal and RMS)
  • Will try changing ground capacitors (or use large resistors) on the adapter boxes on one or more of the more noisy channels.
  • Front Lumi are ready to test
  • Spare PMTs have been ordered

• DAQ (Bryan)

  • Synch Monitor connected to RHRS. Synch looks good (0 microsecond delay, within scaler resolution).
  • ADC situation for June/July looks good
  • DAQ software upgrade is complete
  • Still working on the Online Monitor

• Laser Room (Lisa)

  • Accelerator group took and installed the IA Cell in the Cave.
  • Characterizing new PC (SAM)
    • Birefringence gradient looks as good as Arwen
    • Will start steering measurements today

• Source (Kent)

  • Accelerator will use SVT during May change-up
    • We will be able to back-out, if it doesn't work out.

• Imaging (Ryan)

  • Meeting next week with source group to determine if an imaging solution can be prototyped on the laser table.
  • Need to make sure to order lenses soon.