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Proceedings Paper

NIST-NRL free-electron laser facility
Author(s): Ronald G. Johnson; Robert L. Ayres; John B. Broberg; Roy I. Cutler; Philip H. Debenham; B. Carol Johnson; Eric R. Lindstrom; David L. Mohr; John E. Rose; Julian K. Whittaker; Neil D. Wilkin; Mark A. Wilson; Samuel Penner; Cha-Mei Tang; Phillip Sprangle
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Paper Abstract

A free-electron laser facility (FEL) is being constructed at the National Institute of Standards and Technology (NIST) in collaboration with the Naval Research Laboratory (NRL) . The FEL will be driven by the electron beam from the NIST racetrack microtron (RTM). The anticipated performance of the FEL is: (1) wavelength variability from 200 run to 10 tim; (2) continuous train of 3-ps pulses at 66 MHz; and (3) average power of 10 W to 200 W. This excellent performance will be achieved primarily because of the unique characteristics of the RTM. This accelerator will provide a continuously pulsed electron beam with high brightness and low energy spread at energies from 17 MeV to 185 MeV. For FEL operation high peak current is required and a new injector for this purpose has been designed. The undulator for the project is 3.64-m long with 130 periods and a peak field of 0.54 T. The construction of the undulator is nearly complete and delivery is expected shortly. The 9-m optical cavity has been designed and is under construction. An experimental area is being prepared for FEL users which will have up to six stations. Initial operation of the FEL is scheduled for 1991. The NIST-NRL FEL will provide a powerful, tunable light source for research in biomedicine, materials science , physics , and chemistry.

Paper Details

Date Published: 1 May 1990
PDF: 12 pages
Proc. SPIE 1227, Free-Electron Lasers and Applications, (1 May 1990); doi: 10.1117/12.18598
Show Author Affiliations
Ronald G. Johnson, National Institute of Standards and Technology (United States)
Robert L. Ayres, National Institute of Standards and Technology (United States)
John B. Broberg, National Institute of Standards and Technology (United States)
Roy I. Cutler, National Institute of Standards and Technology (United States)
Philip H. Debenham, National Institute of Standards and Technology (United States)
B. Carol Johnson, National Institute of Standards and Technology (United States)
Eric R. Lindstrom, National Institute of Standards and Technology (United States)
David L. Mohr, National Institute of Standards and Technology (United States)
John E. Rose, National Institute of Standards and Technology (United States)
Julian K. Whittaker, National Institute of Standards and Technology (United States)
Neil D. Wilkin, National Institute of Standards and Technology (United States)
Mark A. Wilson, National Institute of Standards and Technology (United States)
Samuel Penner, Consultant (United States)
Cha-Mei Tang, Naval Research Lab. (United States)
Phillip Sprangle, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 1227:
Free-Electron Lasers and Applications
Donald Prosnitz, Editor(s)

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