Accession Number : ADA291298

Title :   Observation of X-Ray Generation in a Proof-of-Principle Laser Synchrotron Source Experiment.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s) : Ting, A. ; Fischer, R. ; Fisher, A. ; Krall, J. ; Esarey, E.

PDF Url : ADA291298

Report Date : 15 FEB 1995

Pagination or Media Count : 13

Abstract : A Laser Synchrotron Source (LSS) was proposed to generate short-pulsed, tunable x-rays by Thomson scattering of laser photons from a relativistic electron beam. A proof-of-principle (p.o.p) experiment on this LSS configuration is performed. An intense laser pulse (Lambda sub 0 = 1.053 micrometers) is Thomson backscattered from a focussed relativistic electron beam. Time integrated x-ray signals from a photocathode/electron multiplier, at an electron beam energy of 650 keV and an x-ray photon energy of 20 eV, indicate an increase in the x-ray signals above the baseline by an amount comparable to the theoretically predicted value. This is the first observation of x-rays in the ten's of eV range generated by the Thomson scattering of near infrared photons from a relativistic electron beam.

Descriptors :   *X RAYS, *FREE ELECTRON LASERS, *SYNCHROTRONS, INTEGRATED SYSTEMS, INTENSITY, PULSED LASERS, ELECTRON BEAMS, ELECTRON ENERGY, TUNING, PHOTONS, NEAR INFRARED RADIATION, TIME SIGNALS, PHOTOCATHODES, RELATIVITY THEORY, ELECTRON MULTIPLIERS.

Subject Categories : Lasers and Masers
      Particle Accelerators
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE