Microwigglers for submillimeter-wavelength free-electron lasers. Annual report, 1 February 1989-31 January 1990

Technical Report · Wed Mar 28 04:00:00 EST 1990

OSTI ID:6750793

Bekefi, G

We have designed and tested an electromagnet planar microwiggler for use in free-electron lasers (FELs), constructed of current conductors wound on ferromagnetic cores. A prototype with a period of 1 cm and gap of 0.5 cm produced a peak field on axis in excess of 4.6 kG, with a linear B/H characteristic to about 3.2 kG. The field of each half-period of the wiggler is independently tuneable by adjusting the current delivered to each, thus allowing for precision tuning and/or wiggler tapering. We employ general scaling laws to predict performance of a geometrically similar design with a period of 5 mm.

• Research Organization: Massachusetts Inst. of Tech., Cambridge, MA (USA). Plasma Fusion Center
• OSTI ID: 6750793
• Report Number(s): AD-A-220185/3/XAB
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
DESIGN
DOCUMENT TYPES
ELECTRIC CONDUCTORS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
FERROMAGNETIC MATERIALS
FREE ELECTRON LASERS
LASERS
MAGNETIC MATERIALS
MAGNETS
MATERIALS
PERFORMANCE
PERFORMANCE TESTING
PROGRESS REPORT
SCALING LAWS
TESTING
TUNING
WIGGLER MAGNETS