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Title: A long electromagnetic wiggler for the paladin free-electron laser experiments

Abstract

The authors have designed, built, and tested a 25.6-m-long wiggler for a free-electron-laser (FEL) experiment. It is a DC iron-core electromagnetic wiggler that incorporates a number of important and unique facilities. Permanent magnets are used to suppress saturation in the iron and extend the linear operating range. Steering-free excitation allows real-time adjustment of the field taper without causing beam steering. Wiggle-plane focusing is produced by curved pole tips. The magnitude of random pole-to-pole field errors is minimized by a mechanical design concept that reduces tolerance stackup in critical locations. To date, the authors have tested 15 m of this wiggler, and their measurements have shown exceptionally low levels of random errors.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., P.O. Box 808, Livermore, CA (US)
OSTI Identifier:
6414841
Report Number(s):
CONF-870901-
Journal ID: CODEN: IEMGA; TRN: 89-007276
Resource Type:
Conference
Journal Name:
IEEE Trans. Magn.; (United States)
Additional Journal Information:
Journal Volume: 24:2; Conference: 10. international conference on magnet technology (MT-10), Boston, MA, USA, 21 Sep 1987
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; FREE ELECTRON LASERS; WIGGLER MAGNETS; DESIGN; BENCH-SCALE EXPERIMENTS; DIRECT CURRENT; ERRORS; PERFORMANCE TESTING; SUPERCONDUCTIVITY; CURRENTS; ELECTRIC CONDUCTIVITY; ELECTRIC CURRENTS; ELECTRICAL EQUIPMENT; ELECTRICAL PROPERTIES; ELECTROMAGNETS; EQUIPMENT; LASERS; MAGNETS; PHYSICAL PROPERTIES; TESTING; 420300* - Engineering- Lasers- (-1989); 420201 - Engineering- Cryogenic Equipment & Devices

Citation Formats

Deis, G A, Harvey, A R, Parkison, C D, Prosnitz, D, Rego, J, Scharlemann, E T, and Halbach, K. A long electromagnetic wiggler for the paladin free-electron laser experiments. United States: N. p., 1988. Web.
Deis, G A, Harvey, A R, Parkison, C D, Prosnitz, D, Rego, J, Scharlemann, E T, & Halbach, K. A long electromagnetic wiggler for the paladin free-electron laser experiments. United States.
Deis, G A, Harvey, A R, Parkison, C D, Prosnitz, D, Rego, J, Scharlemann, E T, and Halbach, K. 1988. "A long electromagnetic wiggler for the paladin free-electron laser experiments". United States.
@article{osti_6414841,
title = {A long electromagnetic wiggler for the paladin free-electron laser experiments},
author = {Deis, G A and Harvey, A R and Parkison, C D and Prosnitz, D and Rego, J and Scharlemann, E T and Halbach, K},
abstractNote = {The authors have designed, built, and tested a 25.6-m-long wiggler for a free-electron-laser (FEL) experiment. It is a DC iron-core electromagnetic wiggler that incorporates a number of important and unique facilities. Permanent magnets are used to suppress saturation in the iron and extend the linear operating range. Steering-free excitation allows real-time adjustment of the field taper without causing beam steering. Wiggle-plane focusing is produced by curved pole tips. The magnitude of random pole-to-pole field errors is minimized by a mechanical design concept that reduces tolerance stackup in critical locations. To date, the authors have tested 15 m of this wiggler, and their measurements have shown exceptionally low levels of random errors.},
doi = {},
url = {https://www.osti.gov/biblio/6414841}, journal = {IEEE Trans. Magn.; (United States)},
number = ,
volume = 24:2,
place = {United States},
year = {1988},
month = {3}
}

Conference:
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