Microwigglers for submillimeter-wavelength free-electron lasers. Final report, 1 February 1989-30 September 1990

Technical Report · Mon Nov 19 04:00:00 EST 1990

OSTI ID:5969501

Bekefi, G

The MIT microwiggler prototype produced on-axis magnetic fields of nearly 5 kG. Tuning was used to reduce random and systematic wiggler errors to < or - 0.5%. Temperature measurements show that 0.5 msec, 5 kG pulses can be produced at 1 Hz at an operating temperature of 40 deg C above room temperature. We are collaborating with the Brookhaven National Laboratory to develop a lambda = 532 nm FEL using a 70-period microwiggler and a 50 MeV RF LINAC. Preliminary simulation show that oscillator operation is attainable. We have made preliminary measurements of a 20-period subsection of the MIT microwiggler. Saturation characteristics are acceptable and field uniformity without tuning is around 1% RMS. The enclosed photograph shows the partially assembled microwiggler whose completed length will consist of 70 periods.

• Research Organization: Massachusetts Inst. of Tech., Cambridge, MA (USA). Research Lab. of Electronics
• OSTI ID: 5969501
• Report Number(s): AD-A-229394/2/XAB; CNN: N00014-89-J-1654
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers &amp; Masers-- (1990-)
ACCELERATORS
AMBIENT TEMPERATURE
DOCUMENT TYPES
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
ELECTROMAGNETS
ELECTRONIC EQUIPMENT
EQUIPMENT
FREE ELECTRON LASERS
FUNCTIONAL MODELS
LASERS
LINEAR ACCELERATORS
MAGNETIC FIELDS
MAGNETS
OPERATION
OSCILLATORS
PROGRESS REPORT
RADIATIONS
SATURATION
SIMULATION
TEMPERATURE MEASUREMENT
TUNING
VISIBLE RADIATION
WIGGLER MAGNETS