Weekly Summary Tevatron Department Meeting Tevatron Coordinator D

Weekly Summary Tevatron Department Meeting Tevatron Coordinator D. Still/J. Annala February 18, 2011– February 25, 2011 Tevatron Coordinator - FNAL 12/14/2021 1

Store Summary Store Avg Init. Lumi (E 30) Avg Deliv’d Lumi (nb-1) Time (hr) How did it end? 8514 109. 2 1904 8. 1 Normal 8515 109. 4 1902 8 Normal 8516 103 1794 7. 8 Normal 8517 110. 4 1913 7. 8 Normal 8518 277. 4 7397 18. 9 Normal Electron Cooling returns – still no PBJ 8519 300. 1 8579 21. 4 Abort PBJ back on (45 sec) 8526 270. 6 6655 16. 9 Normal 8527 330. 6 12000+ 40+ Ongoing Comments Increase PBJ time to 60 seconds Tevatron Coordinator - FNAL 12/24/10 3

Initial Luminosity Tevatron Coordinator - FNAL 12/14/2021 3

Friday to Friday Integrated 4

Problems • Vacuum leak repair at D 17 collimator • C 4 frig not able to keep up with 8. 2 psia two phase pressure – raised to 8. 5 psia • Network storms – Synch light stops reporting

Studies/Work Completed • Removed Vertical crystal goniometer • Beam Based Alignment Studies

Studies Request • • • EOS: Hollow beam studies (Valishev) Check DC beam at injection with bumper magnet (Hanna) Pbar longitudinal damping studies (Tan) Low Beta Quad tickling (beam based alignment) Ecloud study (P only 1 hr) Anode Program modification for Luminosity Leveling (Moore) Tevatron Coordinator - FNAL 12/14/2021 7

D 0 Alignment Study

D 0 Alignment Study

Low Beta Horz Orbit through D 0

Low Beta Vert Orbit through D 0