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

Conference · Tue Mar 01 00:00:00 EST 1988 · IEEE Trans. Magn.; (United States)

OSTI ID:6414841

Deis, G A; Harvey, A R; Parkison, C D; Prosnitz, D; Rego, J; Scharlemann, E T; Halbach, K

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.

• Research Organization: Lawrence Livermore National Lab., P.O. Box 808, Livermore, CA (US)
• OSTI ID: 6414841
• Report Number(s): CONF-870901-; TRN: 89-007276
• Journal Information: IEEE Trans. Magn.; (United States), Vol. 24:2; Conference: 10. international conference on magnet technology (MT-10), Boston, MA, USA, 21 Sep 1987
• Country of Publication: United States
• Language: English

Related Subjects

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