Weekly Summary Tevatron Department Meeting Tevatron Coordinator Jerry

Weekly Summary Tevatron Department Meeting Tevatron Coordinator Jerry Annala Friday, February 12, 2010

Store Summary Avg Deliv’d Lumi (nb-1) Store Avg Init. Lumi (E 30) 7603 153. 5 7601 187. 4 2357 7597 184. 9 7595 Time (hr) How did it end? Comments In Progress Low pbar shot 5. 5 Aborted Low pbar shot; Abort 2096 4. 3 Quench B 17 H Sep spark at flattop; A 34 no beam loss quench 269. 1 5218 11. 3 Intentional 7590 253. 3 8203 25. 2 Quench 7589 261. 7 4664 8. 8 Intentional 7586 281. 1 5571 10. 4 Intentional 7584 275 6058 12. 1 Intentional 7583 282. 2 6047 12. 1 Intentional 7582 274. 7 6126 14. 0 Intentional Tevatron Coordinator - FNAL RF 3 glitch puts beam in abort gap – 3. 8 mag Earthquake near Sycamore 12/20/2021

Friday to Friday Integrated

Problems • Losses remain high during squeeze • Still some Pbar emittance blow up at collisions Tevatron Coordinator - FNAL 12/20/2021 4

E 1 BLM Abort Saved Quench Store 7601 D 1 crate died Store 7590 terminated by local earthquake

Comments about current running Taking low pbars due to losses In Squeeze and Collisions

Current Problems Pbars falling out Pbar vert emittance growth

Squeeze losses at B 11 separator Quench Separator spark

Squeeze losses at D 0 Separator spark Quench at B 0

Pbar Vertical Emittance Separator Spark Record store Tevatron Coordinator - FNAL 12/20/2021 10

Luminosity vs (Protons X Pbars in MI) Looks pretty good for this intensity but we need to push higher where we see emittance growth

Studies/Work Completed • • Leak Check OTR in E 0 Leak Check B 17 separator Changed Cold compressor at C 4 Safety System tests Tevatron Coordinator - FNAL 12/20/2021 12

Highlights • Put in 3 stores in a 24 hour period.

Studies • • • Separator Scan (mid store 1 hour) TEL-2 abort gap cleaning test (EOS 1 hour) T-980 end of store (2 -4 hours) 150 gev Chrom Study (2 hours- dedicated at 150 gev, Tan) TEL – (EOS, Valishev) Tevatron Coordinator - FNAL 12/20/2021 14