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Title: Analysis and measurements of permanent magnet ''bifilar'' helical wigglers

Abstract

Analysis and measurements of the permanent magnet ''bifilar'' helical wiggler, composed of a cylindrical array of staggered bar magnets, are presented. The discreteness of the magnets is taken into account, thus enabling a calculation of the field strengths of the fundamental and higher spatial harmonics. Calculations show that the performance of this wiggler is expected to be comparable or better than that of a planar wiggler with similar parameters. In addition, the authors have studied experimentally and analytically samarium-cobalt-iron hybrids in which soft iron tubes were used to enhance and/or taper the wiggler field amplitude.

Authors:
;
Publication Date:
Research Org.:
Dept. of Physics and the Research Lab. of Electronics, Massachusetts Institute of Technology, Cambridge, MA (US)
OSTI Identifier:
7002079
Resource Type:
Journal Article
Journal Name:
IEEE J. Quant. Electron.; (United States)
Additional Journal Information:
Journal Volume: 24:5
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; WIGGLER MAGNETS; HARMONICS; PERFORMANCE TESTING; AMPLITUDES; ANALYTICAL SOLUTION; CALCULATION METHODS; COBALT; EXPERIMENTAL DATA; HELICAL CONFIGURATION; HYBRID SYSTEMS; IRON; MAGNETIC FIELDS; SAMARIUM; CONFIGURATION; DATA; ELECTRICAL EQUIPMENT; ELECTROMAGNETS; ELEMENTS; EQUIPMENT; INFORMATION; MAGNETS; METALS; NUMERICAL DATA; OSCILLATIONS; RARE EARTHS; TESTING; TRANSITION ELEMENTS; 430300* - Particle Accelerators- Auxiliaries & Components

Citation Formats

Ashkenazy, J, and Bekefi, G. Analysis and measurements of permanent magnet ''bifilar'' helical wigglers. United States: N. p., 1988. Web. doi:10.1109/3.197.
Ashkenazy, J, & Bekefi, G. Analysis and measurements of permanent magnet ''bifilar'' helical wigglers. United States. https://doi.org/10.1109/3.197
Ashkenazy, J, and Bekefi, G. 1988. "Analysis and measurements of permanent magnet ''bifilar'' helical wigglers". United States. https://doi.org/10.1109/3.197.
@article{osti_7002079,
title = {Analysis and measurements of permanent magnet ''bifilar'' helical wigglers},
author = {Ashkenazy, J and Bekefi, G},
abstractNote = {Analysis and measurements of the permanent magnet ''bifilar'' helical wiggler, composed of a cylindrical array of staggered bar magnets, are presented. The discreteness of the magnets is taken into account, thus enabling a calculation of the field strengths of the fundamental and higher spatial harmonics. Calculations show that the performance of this wiggler is expected to be comparable or better than that of a planar wiggler with similar parameters. In addition, the authors have studied experimentally and analytically samarium-cobalt-iron hybrids in which soft iron tubes were used to enhance and/or taper the wiggler field amplitude.},
doi = {10.1109/3.197},
url = {https://www.osti.gov/biblio/7002079}, journal = {IEEE J. Quant. Electron.; (United States)},
number = ,
volume = 24:5,
place = {United States},
year = {1988},
month = {5}
}