Accession Number:

ADA229394

Title:

Microwigglers for Submillimeter Wavelength Free-Electron Lasers

Descriptive Note:

Final rept. 1 Feb 1989-30 Sep 1990,

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE RESEARCH LAB OF ELECTRONICS

Personal Author(s):

Report Date:

1990-11-19

Pagination or Media Count:

26.0

Abstract:

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. RH

Subject Categories:

  • Lasers and Masers
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE