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Title: MAGNETIC FIELD MEASUREMENTS FOR FAST-CHANGING MAGNETIC FIELDS.

Abstract

Several recent applications for fast ramped magnets have been found that require rapid measurement of the field quality during the ramp. (In one instance, accelerator dipoles will be ramped at 1 T/sec, with measurements needed to the accuracy typically required for accelerators.) We have built and tested a new type of magnetic field measuring system to meet this need. The system consists of 16 stationary pickup windings mounted on a cylinder. The signals induced in the windings in a changing magnetic field are sampled and analyzed to obtain the field harmonics. To minimize costs, printed circuit boards were used for the pickup windings and a combination of amplifiers and ADPs used for the voltage readout system. New software was developed for the analysis. Magnetic field measurements of a model dipole developed for the SIS200 accelerator at GSI are presented. The measurements are needed to insure that eddy currents induced by the fast ramps do not impact the field quality needed for successful accelerator operation.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
DOE/SC
OSTI Identifier:
15020320
Report Number(s):
BNL-74933-2005-CP
R&D Project: 18051; KB0202011; TRN: US0504175
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: APPLIED SUPERCONDUCTIVITY CONFERENCE (ASC); JACKSONVILLE, FLORIDA; 20041003 through 20041008
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; ACCURACY; AMPLIFIERS; DIPOLES; EDDY CURRENTS; HARMONICS; MAGNETIC FIELDS; MAGNETS; PRINTED CIRCUITS; READOUT SYSTEMS; SUPERCONDUCTIVITY

Citation Formats

JAIN, A., ESCALLIER, J., GANETIS, G., LOUIE, W., MARONE, A., THOMAS. R., and WANDERER, P. MAGNETIC FIELD MEASUREMENTS FOR FAST-CHANGING MAGNETIC FIELDS.. United States: N. p., 2004. Web.
JAIN, A., ESCALLIER, J., GANETIS, G., LOUIE, W., MARONE, A., THOMAS. R., & WANDERER, P. MAGNETIC FIELD MEASUREMENTS FOR FAST-CHANGING MAGNETIC FIELDS.. United States.
JAIN, A., ESCALLIER, J., GANETIS, G., LOUIE, W., MARONE, A., THOMAS. R., and WANDERER, P. Sun . "MAGNETIC FIELD MEASUREMENTS FOR FAST-CHANGING MAGNETIC FIELDS.". United States. https://www.osti.gov/servlets/purl/15020320.
@article{osti_15020320,
title = {MAGNETIC FIELD MEASUREMENTS FOR FAST-CHANGING MAGNETIC FIELDS.},
author = {JAIN, A. and ESCALLIER, J. and GANETIS, G. and LOUIE, W. and MARONE, A. and THOMAS. R. and WANDERER, P.},
abstractNote = {Several recent applications for fast ramped magnets have been found that require rapid measurement of the field quality during the ramp. (In one instance, accelerator dipoles will be ramped at 1 T/sec, with measurements needed to the accuracy typically required for accelerators.) We have built and tested a new type of magnetic field measuring system to meet this need. The system consists of 16 stationary pickup windings mounted on a cylinder. The signals induced in the windings in a changing magnetic field are sampled and analyzed to obtain the field harmonics. To minimize costs, printed circuit boards were used for the pickup windings and a combination of amplifiers and ADPs used for the voltage readout system. New software was developed for the analysis. Magnetic field measurements of a model dipole developed for the SIS200 accelerator at GSI are presented. The measurements are needed to insure that eddy currents induced by the fast ramps do not impact the field quality needed for successful accelerator operation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {10}
}

Conference:
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