Notes from Local Meeting June 30, 2005

• Riad Suleiman - Continued linearity tests on HAPPEX PMTs (after Lisa was on vacation). Good results from new setup, showing linearity on order 99.8%. Some results here.
• Tim Holmstrom --
  • Optics plan can be adapted by deleting all runs with watercell (other runs should still be taken).
  • With no third cryo loop, room for an additional extended target. We prefer an additional +/- 12cm Ta optics target.
• Bob Michaels -- email from Eric Abkemeier: We will meet to discuss effect of HAPPEX-He on radiation budget and decide whether the experiment can continue. So the radiation budget question is not off the table, just delayed and _probably_ not going to be an issue.
• Kent Paschke --
  • Working on Installation and Run plan documents.
  • Will talk to Hall B and C about helicity board settings and dithering.
  • Will check on ion chamber settings, and procedures to avoid luminosity limits as we had last year on startup.
• Lisa Kaufman --
  • Will continue work on PMT linearity tests
  • Helicity magnet test plan tonight.
• Lindsay Glesener and Bryan Moffit --
  • BSY cavity monitor working a little, but not well.
  • Cavity monitor BCM which was saturating is no longer doing so. Maybe Musson changed the gain parameter?
  • Regressed results for working cavity monitor in target region suggests better than 1 micron precision!
• Piotr Decowski -- Working on the Qsq scanner. Kirstin is in town, most scanner components are here. Pete will arrive on July 6.
• Bryan Moffit will try to put a list or figure of beamline components in the Counting House or on the HAPPEX web page.