Magnetic measurements at Lawrence Berkeley Laboratory

Author

Green, M.I. ; Barale, P. ; Callapp, L. ; Case-Fortier, M. ; Lerner, D. ; Nelson, D. ; Schermer, R. ; Skipper, G. ; Van Dyke, D. ; Cork, C. ; Halbach, K. ; Hassenzahl, W. ; Hoyer, E. ; Marks, S. ; Harten, T. ; Luchini, K. ; Milburn, J. ; Tanabe, J. ; Zucca

Author_Institution

Lawrence Berkeley Lab., California Univ., Berkeley, CA, USA

Volume

28

Issue

1

fYear

1992

fDate

1/1/1992 12:00:00 AM

Firstpage

797

Lastpage

800

Abstract

Recent magnetic measurement activities at LBL have been concentrated in two separate areas, electromagnets and permanent magnets for the Advanced Light Source (ALS), and superconducting magnets for the Superconducting Super Collider Laboratory (SSCL). A survey of the many different measurement systems is presented. These include AC magnetic measurements of an ALS booster dipole engineering model magnet, dipole moment measurements of permanent magnet blocks for ALS wigglers and undulators, permeability measurements of samples destined for wiggler and undulator poles, harmonic error analysis of SSC one-meter model dipoles and quadrupoles and five-meter long SSC prototype quadrupoles, harmonic error analysis of ALS dipoles, quadrupoles, and sextupoles, precision Hall probe mapping of ALS storage ring combined function magnets, and the design of the ALS insertion device magnetic mapping system. A Unix-based data acquisition system that is being developed for the SSC is also described. Probes used for magnetic measurements include Helmholtz coils, integral coils, point coils, bucking harmonic analysis coils, several different types of Hall probes, and nuclear magnetic resonance magnetometers

Keywords

coils; electromagnets; magnetic variables measurement; magnetometers; permanent magnets; probes; superconducting magnets; AC magnetic measurements; ALS booster; ALS insertion device magnetic mapping system; ALS wigglers; Advanced Light Source; Hall probes; Helmholtz coils; LBL; Lawrence Berkeley Laboratory; Superconducting Super Collider Laboratory; Unix-based data acquisition; bucking harmonic analysis coils; dipole engineering model magnet; dipole moment measurements; electromagnets; harmonic error analysis; integral coils; magnetic measurement; nuclear magnetic resonance magnetometers; permanent magnets; permeability; point coils; precision Hall probe mapping; storage ring combined function magnets; superconducting magnets; undulators; Coils; Electromagnetic measurements; Laboratories; Magnetic devices; Magnetic moments; Magnetic separation; Magnetic variables measurement; Permanent magnets; Superconducting magnets; Undulators;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.119998

Filename

119998