Preliminary study of an integral harmonic analysis magnetic field measurement system for long SSC magnets

Conference · Mon Apr 01 00:00:00 EST 1991

OSTI ID:5773545

Green, M I

We described the research and development required to design and build a prototype system capable of making integrated magnetic multipole measurements of warm and cryogenic 50 mm bore SSC dipole and quadrupole magnets utilizing a warm probe in a warm finger. Our experience and some preliminary studies indicate that it is highly unlikely that a 16 meter long probe can be fabricated that will have a twist below several milliradians at any temperature. Consequently we describe a segmented 16 meter long probe for which we intend to calibrate the phase of each segment to within 0.1 milliradians. The data for all segments will be acquired simultaneously, and integrated data will be generated from the vector sums of the individual segments. The calibration techniques and instrumentation required to implement this system are described. The duration of an integral measurement at one current is less than ten seconds, which is three orders of magnitude shorter than that required by the mole technique presently being used. The system is based on an extrapolation of the techniques used at LBL to measure cryogenic 1 meter models of SSC magnets with a cryogenic probe. 3 refs., 3 figs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5773545
• Report Number(s): LBL-29951; CONF-910505-208; ON: DE91013751
• Resource Relation: Conference: 1991 Institute of Electrical and Electronics Engineers (IEEE) particle accelerator conference (PAC), San Francisco, CA (USA), 6-9 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
47 OTHER INSTRUMENTATION
MAGNETIC FIELDS
MEASURING METHODS
SUPERCONDUCTING MAGNETS
COST ESTIMATION
DATA ACQUISITION SYSTEMS
DESIGN
HARMONICS
MEASURING INSTRUMENTS
PROBES
SUPERCONDUCTING SUPER COLLIDER
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
MAGNETS
OSCILLATIONS
STORAGE RINGS
SUPERCONDUCTING DEVICES
430300* - Particle Accelerators- Auxiliaries & Components
440800 - Miscellaneous Instrumentation- (1990-)