Weekly Summary Tevatron Department Meeting Tevatron Coordinator Dean

Weekly Summary Tevatron Department Meeting Tevatron Coordinator Dean Still Friday, May 7, 2010

Store Summary Store Avg Init. Lumi (E 30) Avg Deliv’d Lumi (nb-1) Time (hr) How did it end? 7779 373 9003 17. 8 Intentional 7780 383 8552 16. 9 Intentional 7781 0 0 0 Quench in Squeeze 7784 355 7369 13. 5 Intentional 7789 270 5620 12. 9 Abort 7792 358 7327 13. 5 Intentional 7793 397 9087 18. 7 Intentional 7794 364 8817 21. 7 Intentional T-980 EOS study 7795 396. 5 2181 2. 1 Quench AAK 1 abort kicker pre-fire during store Tevatron Coordinator - FNAL Comments Quench at seq 24 not fully explained Poor MI coalescing; Door Interlock failure at D 2; Quench during PO 1/1/2022

Store Numbers Tevatron Coordinator - FNAL 1/1/2022 3

HEP Particle Intensities

HEP Effective Emittance

HEP Bunch Length

Problems • Still have both Pbar and Proton Longitudinal blow ups • Quench caused by human error in dry squeeze (lead flows turned off) • Door interlock failure at D 2 – Causing quench at lowbeta’s due to ramp down. • Tevatron DCCT hardware failure – Fix successful. • AAK 1 Abort Kicker Prefire – Quench A 1, A 2, A 4, B 1 BA, BB, BC, BD, DA, DB Tevatron Coordinator - FNAL 1/1/2022 7

Studies/Work Completed • D 0 aperture scans at 150 Ge. V • Repair of vacuum pump on TEL 2 • T-980 3 hours EOS – Attempted 2 plane crystal collimation Tevatron Coordinator - FNAL 1/1/2022 8

Luminosity Integral Tevatron Coordinator - FNAL 1/1/2022 9

Study requests • • TEL-2 abort gap cleaning test (EOS 1 hour) 150 gev Chrom Study (2 hours- dedicated at 150 gev, Tan) Aperture scans at B 0 and D 0 Ping beam at low field to measure coupling with protons on the pbar helix • Tune mults calibration. • Pbar only store once luminosity is better to document conditions. • Lattice measurements at Flattop and Sequence 14 and on pbar helix at Collisions Tevatron Coordinator - FNAL 1/1/2022 10