Measurements of magnetization multipoles in four centimeter quadrupoles for the SSC

Conference · Sat Jun 01 04:00:00 EDT 1991

OSTI ID:5514950

Green, M A; Barale, P J; Benjegerdes, R W; Gilbert, W S; Green, M I; Scanlan, R M; Sopher, J; Taylor, C E

Higher multipoles due to magnetization of the superconductor in superconducting dipole and quadrupole magnets has been observed in over twenty years. This report presents measurements of the 12 pole and 20 pole multipoles in a model one-meter long four-centimeter bore SSC type quadrupole built at the Lawrence Berkeley Laboratory (LBL). The measurements were compared with calculations of the field structure using magnetization theory. Good agreement was observed between the measured multipoles and the calculated multipoles. Under conditions equivalent to injection into the SSC at an energy of 2 TeV, about 1.0 unit of 12 pole was observed and 0.05 units of 20 pole was observed. (One unit of field error is a field error of one part in ten thousand). Magnetization multipole measurements were also done on the first full length (5 meter) SSC quadrupole prototype. Measurements of flux creep decay were made on three one meter quadrupoles and the first five meter long quadrupole. 7 refs., 9 figs.

• Research Organization: Lawrence Berkeley Lab., CA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5514950
• Report Number(s): LBL-30811; SC-MAG--340; CONF-910635--10; ON: DE91016265
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430300* -- Particle Accelerators-- Auxiliaries & Components
DATA
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
EXPERIMENTAL DATA
INFORMATION
MAGNETIZATION
MAGNETS
MEASURING METHODS
MULTIPOLES
NUMERICAL DATA
QUADRUPOLES
STORAGE RINGS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
SUPERCONDUCTING SUPER COLLIDER
THEORETICAL DATA