booster corrector upgrade october 11 2010 william pellico
TRANSCRIPT
Booster Corrector Upgrade
October 11 2010William Pellico
History• Olden days - Booster Correctors – DC supplies that had limited correction strength• Quadrupoles limited to < 1 amp RMS current• Dipoles limited to < 6 amps RMS current
– Alignment – • Done by Booster Personnel with no alignment fixtures
– Very Limited Orbit Control – mostly low energy– Very Little harmonic control – mostly low energy
• Upgraded in late 80’s with ramped power– Allowed for higher current – due to ramp down at
end of cycle. Still limited by RMS and slew rates!
Old Corrector (Saddle Style Package)
New Corrector
Short Straight Corrector Package
Multi-Element Corrector DesignOrange – horizontal dipole
Bright green – vertical dipole
Open green – normal quadrupole
Red – skew quadrupole
Magenta – normal sextupole
Blue – skew sextupole
Taken From: Booster Corrector Review 10 Oct 2006 Harding - Magnet Design and Fabrication
Booster Corrector Magnets
• New Booster Corrector Magnet Package Before Potting
Old - NewOLD
• Horizontal trim– 4 amps
• Vertical trim– 5.6 amps
• Quadrupole– 1 amp
• Skew Quadrupole– .3 amps
• Short straights: Horizontal ramped, Vertical DC
• Long straights: Vertical ramped, Horizontal DC
• Sextupoles are in separate packages– 12 Horizontal– 9 Vertical
New• Normal Sextupole
– 1.41 T/m– 2350 T/m/s
• Skew Sextupole– 1.41 T/m– 2350 T/m/s
• Horizontal Dipole
– Be able to produce 1 cm of beam motion at highest beam energy (8GeV).
– Be able to slew position 1 mm/ms up to the middle of the cycle
– 0.009 T-m– 3.24 T-m/s
• Vertical Dipole– 0.015 T-m– 3.24 T-m/s
• Normal Quadrupole– 0.16 T– 88 T/s
• Skew Quadrupole– 0.008 T– 0.8 T/s
Beam Loss vs. 1E12 Beam Intensity for Past 5 Years
Record Intensity RunningLimited by Shielding Assessment
Corrector InstallationCompleted
Recent Running
It was 10 years ago today….
Project Worker Bees – Over 120 People• EE Support
– George Krafczyk– Kenneth Sievert– John Brown
• Controls– Dan McArthur– Joseph Gomilar– Mike Kucera– Bill Marsh
• Alignment Group – Key Group with lots of input– O’Sheg Oshinowo
• TD– David Harding– George Velev– Sasha Makarov– Joseph DiMarco– TJ Gardner– Vladimir Kashikhin– Dan Smith
• Safety– Joel Fulgham
• Instrumentation– Jim Crisp– James Fitzgerald
• Operations– Duane Newhart
• Proton Source– Craig Drennan– Eric Prebys– Todd Sullivan– Jim Lackey– W Pellico– Doris Dick
• AD Mechanical – Key Group (too many to list)– Dave Augustine– Ben Ogert– Joel Misek– Maurice Ball– Justin Briney– Robert Slazyk– Scott Oplt– John Buck– Jason Kuinski
• Management– Bruce Baller– Roger Dixon– Steve Holmes– Kenneth Domann