Minutes of the Aug 31, 2007 Tevatron Dept Meeting

http://indico.fnal.gov/conferenceDisplay.py?confId=1246

* News (Ron) - No news is good news.

* Shutdown Status (Jim Volk) - The C4 and D1 houses are ready for cooldown
sign-offs.  A1 and E1 are warmed up to look for and repair leaks.  ~60 magnets
have been unrolled or checked.  10 of 19 corroded magnet stands have been
replaced.  Cleaning of ceramics has begun (to help reduce ground current).
Discussions on aligning/moving low-beta quads are in progress.

* Thoughts on Tevatron Startup (Jerry Annala) - The Tev is scheduled to be cold
by Oct 14, so we may be ready for beam commissioning by Oct 15.  We are
planning our "usual" 2 week schedule - proton-only stores during the first week
with a likely proton-pbar store, followed by a second week of continued
proton-only stores and hopefully >1 36x36 HEP stores.  We should have 10-11
experts available for 2-person shifts around the clock.  Expected changes to
consider: sequencer changes/clean-up, new collision helix (changes to the
squeeze), lattice changes from the unrolled D16 quad and low-beta quad 
alignment, Java OACs to replace TCHROM, TEVCOL, and maybe some "slot 7"
applications (orbit stabilization and injection closure by the Struck TBT
system).  General plan - get to low-beta quickly on a good central orbit to
make optics measurements; determine optics corrections while working on ramp
and squeeze; work on helices after central orbit work and optics corrections
complete; aperture scans at the usual places; allow plenty of time for 
separator conditioning since we will be changing polarities to tune-up the
proton and pbar helices.

* Luminosity Projection Model (Vaia Papadimitriou) - Vaia presented her
projections for FY08 and FY09 for several different scenarios with differing
levels of pessimism or optimism on various parameters including peak pbar
stacking rate, store hours per week, luminosity lifetime.  She was asked to
assume 44 weeks of running per year in FY08 and FY09.  The delivered
luminosity ranged from ~2.6 to ~3.6 fb^-1 more through the end of FY09.
There were some questions regarding the model suggested initial luminosities
actually turn over and decreas for very long stores - she will clarify. Our 
famous "blue and red" luminosity curves will integrate to 1.27 and 1.71 fb^-1
respectively for FY08.