Minutes of the April Fool's Day 2011 Tevatron Dept Meeting

https://indico.fnal.gov/conferenceDisplay.py?confId=4338

* Operations Summary (Xiaolong Zhang) - It's good to be back and running after
warming up the D1 house to replace the D16-2 dipole that had developed an
electrical fault on March 20. (The adjacent D16-1 spool package was also 
replaced.) There have been 4 HEP stores since the magnet replacement with 
initial luminosities between 212 and 329 ub^-1/s.  Store 8603 was lost when a 
dipole corrector magnet power supply failed and caused a magnet quench.  The 
first HEP shot attempt was lost upon acceleration after an RF station tripped 
off and generated lots of uncaptured beam that caused a quench.  We have 
delivered 11 pb^-1 since the first store on March 30.  We are gradually raising
beam intensities as we tune up the machine.

* Tevatron Accelerator Studies (Ron) - Ron gave an overview of the proposed
plan to do ~2 weeks of acclerator studies before the Tevatron shuts down.  The
main topics are (ongoing) testing bent crystal and hollow electron beam 
collimation and various beam-beam effect measurements.  Some studies can be
done during end-of-store studies, while other require occasional blocks of
dedicated time.  FNAL, BNL, and CERN folks are collaborating on these studies.

* Discussion on Next Week's Plan (All)

   - Get back to normal HEP operation.
   - Separator scans (middle to end of store)
   - Commission longitudinal pbar damper (Tan et al., proton-only)
   - Tune Mult Calibration (Ron, 1-2 hr end-of-store)
   - Crystal collimator (Dean et al., end-of-store)
   - Hollow e-beam (Alex, Giulio, end-of-store)
   - Electron cloud (Xiaolong, proton-only)
   - Bunch Length Manipulation (Ron, end-of-store)