1 / 14

FNAL Store and Operations Summary: Standard Plots Week in Review 04/14/03 – 04/21/03

Detailed summary of store and operations at FNAL, including issues encountered, maintenance tasks, integrated luminosity measurements, goals, and orbit smoothing efforts. Highlights key events and achievements during the week.

mikayla-joseph
Download Presentation

FNAL Store and Operations Summary: Standard Plots Week in Review 04/14/03 – 04/21/03

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Store and Operations Summary Standard Plots Week in Review: 04/14/03 –04/21/03 Keith Gollwitzer – FNAL

  2. Store Summary K. Gollwitzer - FNAL

  3. Summary of Problems • TeV • Abort due to low  quad power supply • Abort due to power supply failure on control chassis • Separator spark • Proton Source • B:ORBMP power supply maintenance/repair • Booster RF; Multiwire flapping in 400MeV line • MI/RR/Pbar/Other • MI RF station • Recycler vacuum work competed and investigated • Pbar Debuncher extraction kicker cable fried • SDA failed to record for a store K. Gollwitzer - FNAL

  4. UnscheduledMaintenance & Studies • TeV Transverse Dampers and Coupling • TeV Octupoles and stability • TeV Orbit Smoothing • TeV FW diagnostic study • New Helix aperture and lifetime studies • TeV microwave Schottky were made functional K. Gollwitzer - FNAL

  5. Correlation of Quad Trim Power supply and Losses Losses Power Supply K. Gollwitzer - FNAL

  6. Correlation of Quick Orbit Excursions and Losses Losses Orbit V&H K. Gollwitzer - FNAL

  7. Missing SDA store 2433 Total Integrated Luminosity for the week: 7.1pb-1 ORBMP work K. Gollwitzer - FNAL

  8. Integrated Luminosity & Goals Goal curves were defined in Oct 02 K. Gollwitzer - FNAL

  9. Many studies and some maintenance

  10. Tevatron orbit smoothing • Goal is to keep orbits stable to within ~0.5 mm. • Present day orbit is off by ~ 2 mm in some location. • Several corrector dipoles are near the 50 Amp limit. (This has interfered with orbit smoothing lately.) • Several correctors in close proximity have large but opposite currents. +4 mm Horz -4 mm Vert Present orbits in the Tevatron From M. Martens and TeV group K. Gollwitzer - FNAL

  11. Goal of (this weeks) orbit smoothing • We used a “standard” smooth procedure since Nov ‘02. (This would take ~ 2 hours for a smooth.) • Orbits have drifted too far from the nominal since March. • Our aim is: • Adjust orbit positions to keep beam centered. • Reduce strengths in correctors. • Adjust tunes after smoothing. • Find a “Standard” orbit than can be maintained with ~ 2 hour smooth. From M. Martens and TeV group K. Gollwitzer - FNAL

  12. Summary • The week • 101 store hours • Bad Luck: two aborts and separator spark • ORBMP still required attention • Th,F,Sa stores started with record protons at collisions • Overall a very good week. • Goal for this week • 5 Shifts of studies • Hope to continue increases in luminosity • Continue with stable store running K. Gollwitzer - FNAL

More Related