Harmonic analysis of the AGS Booster imperfection

Conference · Fri Dec 31 00:00:00 EST 1993

OSTI ID:10132638

Shoji, Y; Gardner, C

The harmonic content of magnetic field imperfections in the AGS Booster has been determined through careful measurements of the required field corrections of transverse resonances. An analysis of the required correction yielded amplitude and phase information which points to possible sources of imperfections. Dipole and quadrupole imperfections, which are proportional to the field of bending magnets (B), are mainly driven by any misalignment of the magnets. Quadrupole and sextupole imperfections, which are proportional to dB/dt, are driven by imperfections of the eddy-current correction system. The observations also suggest the presence of a remnant field.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 10132638
• Report Number(s): BNL-60046; CONF-931254-2; ON: DE94008083; TRN: 94:006474
• Resource Relation: Conference: Orbit correction and analysis in circular accelerators workshop,Upton, NY (United States),1-3 Dec 1993; Other Information: PBD: [1993]
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
PARTICLE BOOSTERS
BEAM OPTICS
HARMONICS
BROOKHAVEN AGS
CORRECTIONS
EDDY CURRENTS
BEAM BENDING MAGNETS
ALIGNMENT
430200
430303
BEAM DYNAMICS, FIELD CALCULATIONS, AND ION OPTICS
EXPERIMENTAL FACILITIES AND EQUIPMENT