Weekly Summary Tevatron Department Meeting Tevatron Coordinator C

Weekly Summary Tevatron Department Meeting Tevatron Coordinator C. Y. Tan/D. Still August 26, 2011 - September 16, 2011 Tevatron Coordinator - FNAL 12/20/2021 1

Store Summary Store Avg Init. Lumi (E 30) Avg Deliv’d Lumi (nb-1) Time (hr) How did it end? Comments 9032 198. 9 5046 15. 6 Normal No Ecool. T: QDD 1 str bias trip indication. D 0 IP y pos > 300 um. 9035 114. 7 1902 7. 6 Normal No ecool 9036 114. 7 1774 6. 3 Normal No ecool 9037 101. 8 1793 8. 1 Normal No ecool 9038 97. 2 1819 8. 8 Normal No ecool 9039 - - - Aborted E 48 kicker prefire, took out protons 34, 35, 36 during 2 nd set of pbar transfers. 9040 91. 9 1502 7. 3 Normal No ecool 9041 115. 3 2269 9. 7 Normal No ecool 9042 260. 3 4152 7. 9 Normal Vert orbits poor. V: SMOOTH=4. 9044 238. 0 5437 14. 5 Normal Disabled pbar sync light mirror. Proton bunch 34 blew up during squeeze. 9045 334. 5 6402 11. 9 Normal Protons blew up going from end of squeeze to collisions. 9048 318. 8 5351 9. 7 Abort Lowered horz. proton tune at collisions by 0. 001. TRF 3 tripped during HEP. B 3 vacuum controls problem pulled abort. Tevatron Coordinator - FNAL 12/20/2021 2

Store Summary Store Avg Init. Lumi (E 30) Avg Deliv’d Lumi (nb-1) Time (hr) How did it end? Comments 9049 - - - Quench DA E 48 kicker prefire. 9053 248. 5 5200 15. 4 Normal V: SMOOTH=4 9054 274. 1 6792 16. 9 Normal HA 22 wandering. 9056 346. 4 8326 17. 0 Normal Poor short arc orbits. V: SMOOTH=4. More protons fell out at the start of ramp compared to previous stores. 9057 358. 5 7898 15. 4 Normal 9058 - - - Quench DA 9060 356. 8 8597 17. 9 Normal 9061 365. 9 8113 15. 5 Normal 9062 - - - Quench DA 9064 203. 0 4221 12. 2 Normal 9067 385. 1 8349 16 Normal Tevatron Coordinator - FNAL E 48 K prefired @3 rd pbar transfer. Long pbar blow up 3 min into HEP. Poor long arc horz orbits. V: SMOOTH=4. E 48 prefired @7 th pbar transfer. Replaced pulse generator card. Proton bunch 10 blew up in all trains. Short arc orbits poor. V: SMOOTH=4. Horz and vert tunes raised by +0. 001 at flattop and squeeze to save protons. Collisions unchanged. D 0 vert IP moved down 100 um. Long pbar blow up 3 min into HEP. 12/20/2021 3

Store Summary Store Avg Init. Lumi (E 30) Avg Deliv’d Lumi (nb-1) Time (hr) How did it end? 9068 358 8897 18. 5 Normal 9069 353 4404 6. 2 Normal 90719091 Comments 5 store at low energy 450 gev 9097 357 8326 17. 0 Abort 9098 367 7898 15. 4 Abort 9099 238 - - Normal 9103 351 8597 17. 9 Normal 9104 9122 Tevatron Coordinator - FNAL 6 at 150 gev 6 stores low energy at 450 gev 12/20/2021 4

Friday, September 2, 2011 Accelerator Status 5

Problems • • St 9039, St 9049, St 9058, St 9062: E 48 kicker prefire. – St 9049: Replaced delay generator. – St 9062: Replaced pulse generator card. – St 9067: Adjusted negative spark gap pressure from 82 psi to 80 psi St 9044: pbar sync light mirror disabled. St 9048: TRF 3 tripped during HEP. B 3 vacuum control problems. Replaced C 200 card. TRF 4 tripped RFGE in dry squeeze. St 9051: TRF 5 LCW water leak. Patched. St 9054: HA 22 wandering ramp, squeeze and HEP. Quenching due to wrong mode for low energy Tevatron Coordinator - FNAL 12/20/2021 6

Studies Completed • 3 x 3 store studies (AC dipole) – 3 x 3 St 9028 quench at E 11 – 3 x 3 St 9029 abort from T: SF trip. – Low energy running at 150 gev and 450 Gev

Initial Luminosity Tevatron Coordinator - FNAL 12/20/2021 8

For the Year Tevatron Coordinator - FNAL 12/20/2021 9

Lum for the years

Studies Request • Hollow beam studies • SOS: Luminosity Leveling (Moore) • T 980: MVR beam on hor pixel (E 0 S 3 hours) (Still) Tevatron Coordinator - FNAL 12/20/2021 11