Design, fabrication, and calibration of a cryogenic search-coil array for harmonic analysis of quadrupole magnets

Conference · Tue Sep 01 00:00:00 EDT 1987

OSTI ID:5524142

Green, M I; Barale, P J; Hassenzahl, W V; Nelson, D H; O'Neill, J W; Schafer, R V; Taylor, C E

A cryogenic search-coil array has been fabricated at LBL for harmonic error analysis of SSC model quadrupoles. It consists of three triplets of coils; the center-coil triplet is 10 cm long, and the end coil triplets are 70 cm long. Design objectives are a high bucking ratio for the dipole and quadrupole signals and utility at cryogenic operating currents (approx.6 kA) with sufficient sensitivity for use at room-temperature currents (approx.10 A). the design and fabrication are described. Individual coils are mechanically measured to +-5 ..mu..m, and their magnetic areas measured to 0.05%. A computer program has been developed to predict the quadrupole and dipole bucking ratios from the mechanical and magnetic measurements. The calibration procedure and accuracy of the array are specified. Results of measurements of SSC model quadrupoles are presented. 1 ref., 4 figs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5524142
• Report Number(s): LBL-23102; CONF-870901-20; ON: DE88003911
• Resource Relation: Conference: 10. international conference on magnet technology (MT-10), Boston, MA, USA, 21 Sep 1987; Other Information: Paper copy only, copy does not permit microfiche production
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
MAGNET COILS
DESIGN
FABRICATION
QUADRUPOLES
HARMONICS
CALIBRATION
SUPERCONDUCTING MAGNETS
SUPERCONDUCTING SUPER COLLIDER
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
MAGNETS
MULTIPOLES
OSCILLATIONS
STORAGE RINGS
SUPERCONDUCTING DEVICES
430300* - Particle Accelerators- Auxiliaries & Components
420201 - Engineering- Cryogenic Equipment & Devices