NBS/NRL (National Bureau of Standards/Naval Research Laboratory) free-electron-laser facility

Technical Report · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6777990

Penner, S; Ayres, R; Cutler, R; Debenham, P; Johnson, B C

A free-electron laser is being built whose electron-beam source is the 185-MeV CW racetrack microtron (RTM) presently nearing completion. This accelerator is characterized by extremely good emittance epsilon/sub n/ somewhat < 10 micrometers and small energy spread delta gamma/gamma somewhat < .0003 at full energy. A new photocathode injector operating on the 32nd subharmonic of the 2380-MHz RF frequency is being developed to increase the peak current to somewhat > 2 A in 3-ps micropulses. The wiggler design has 130 periods of lambda/sub w/ = 28 mm with RMS wiggler parameter K somewhat < 1. Three-dimensional calculations indicated that power gains of 10-30% per pass can be achieved for optical wavelengths in the range 200 nm to 10.0 micrometers. The design of the RTM and FEL are described. This FEL is intended for use in a broad program of research applications in biomedicine and materials science.

• Research Organization: National Bureau of Standards, Washington, DC (USA)
• OSTI ID: 6777990
• Report Number(s): AD-A-194214/3/XAB
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
43 PARTICLE ACCELERATORS
430303 -- Particle Accelerators-- Experimental Facilities &amp; Equipment
ACCELERATORS
BEAMS
CATHODES
CYCLIC ACCELERATORS
CYCLOTRONS
DESIGN
ELECTRICAL EQUIPMENT
ELECTRODES
ELECTROMAGNETS
ELECTRON BEAMS
EQUIPMENT
FREE ELECTRON LASERS
LASERS
LEPTON BEAMS
MAGNETS
MICROTRONS
OPTICS
PARTICLE BEAMS
PHOTOCATHODES
RACETRACK MICROTRONS
WIGGLER MAGNETS