Bending magnets for the CBA beam-transport line

Conference · Sat Jan 01 04:00:00 EST 1983

OSTI ID:6441417

Thern, R E

The beam-transport line from the AGS to CBA requires 68 large bending magnets, consisting of pure dipoles and two types of combined function gradient magnets. All three types were designed with magnetic-field calculation program POISSON, using the same exterior dimensions and coil package. The design goal of +-1% momentum acceptance for the transport line required a wide horizontal aperture, with a much-smaller vertical aperture for economy. Two prototypes of one gradient magnet were built, and a facility constructed to measure them and the later production magnets. Measurements were done using both a long coil and a point coil (Rawson-Lush gaussmeter). Preliminary results show ..delta..B/B < 0.2 x 10/sup -3/, ..delta..G/G < 0.3 x 10/sup -2/, and ..delta..B/sub 2//B < 0.3 x 10/sup -4/ cm/sup -2/ over the beam aperture. Due to end effects, the actual gradient differs from the design gradient by 1%, which has been compensated for in the beam-line design.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6441417
• Report Number(s): BNL-32759; CONF-830311-24; ON: DE83010060
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities &amp; Equipment
ACCELERATORS
BEAM BENDING MAGNETS
BEAM TRANSPORT
BROOKHAVEN AGS
CYCLIC ACCELERATORS
DATA
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
EXPERIMENTAL DATA
INFORMATION
MAGNETIC FIELDS
MAGNETS
MEASURING METHODS
NUMERICAL DATA
SYNCHROTRONS