Accession Number : ADA193100

Title :   Research Opportunities Below 300 nm at the NBS Free-Electron Laser Facility,

Corporate Author : NATIONAL BUREAU OF STANDARDS GAITHERSBURG MD

Personal Author(s) : Debenham, Philip H ; Johnson, B C

PDF Url : ADA193100

Report Date : Jan 1987

Pagination or Media Count : 6

Abstract : A free-electron laser (FEL) which will be driven by the cw racetrack microtron (RTM), will be operated as an oscillator with the fundamental wavelength variable from approximately 200 nm to 10 micrometers. The presence of harmonics should allow for operation in the VUV and EUV spectral regions. The cw RTM consists of a 5 MeV injector section and a 12 MeV, cw, rf linear accelerator (linac). The linac is placed between two uniform-field end magnets that recirculate the beam on successive orbits through the linac. The beam can be deflected out of the RTM after completing up to and including 15 passes through the linac, so that the final beam energy is 17 MeV to 185 MeV. As a FEL driver, the unique features of the RTM are the cw nature of the beam, excellent energy stability, small values of the transverse emittance and energy spread, and high average power.

Descriptors :   *FACILITIES, *FREE ELECTRON LASERS, EMITTANCE, ENERGY, HARMONICS, LINEAR ACCELERATORS, ORBITS, OSCILLATORS, RADIOFREQUENCY, REGIONS, SPECTRA, STABILITY, TRANSVERSE

Subject Categories : Test Facilities, Equipment and Methods
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE