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Store Summary

A summary of Tevatron coordination at FNAL, including store results, issues, completed work, and upcoming plans. Details include aperture scans, beam injection adjustments, equipment issues, and future tasks.

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Store Summary

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  1. Store Summary Tevatron Coordinator - FNAL 1/6/2020 1

  2. Store Summary Tevatron Coordinator - FNAL 1/6/2020 2

  3. Results of B0 Aperture Scan

  4. Single vs Multi batch Injection and DC beam Store 6467 Store 6469

  5. Pbar closure before and after kicker timing adjustments of 6 nsec on each side

  6. Luminosity vs intensity

  7. Problems • HD13 and VE11 – settings timeout when running smooth program. Changes made to C50 to get around this. • Problems with pbar closure on store 6465 • B4 House breaker tripped • Pbar emittances for the last 4 transfers in store 6465 were large. • E1 wet engine tripped on a false Emergency brake indication • D17-3 collimator did not move to its initial position, rebooted collimator front end • F1 Wet engine tripped off during store 6459. • B48 separator has indicated sparks on several occasions but no affect is seen • Dead 24V supply at CUB causing LCW regeneration issues. Tevatron Coordinator - FNAL 1/6/2020 8

  8. Studies/Work Completed Multi bunch proton injection for store 6469 Aperture scans at B0 Adjusted pbar injection timing Tevatron Coordinator - FNAL 1/6/2020 9

  9. Plans for Next Week • Shut down work • -Roll measurements on all Tev dipoles • - Look at alignment of the CDF downstream beam pipe • - Ground fault search at F4 • -Replace thyratron for AAK3 • Startup • - Establish 150 Gev beam and do quick aperture scan to establish • if we did the right thing • -Get beam to flattop and then low beta , look at tunes and orbits and • correct as needed. • Pre shutdown studies • - Crystal Collimator • - B0 quad tickling • -Bumper magnet abort gap clearing studies

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