Application of nondiffracting laser beam to laser Compton scattering

Abstract

Nondiffracting laser beam - J0 Bessel beam, is suggested to take the place of conventional Gaussian laser beam in a laser Compton scattering system, in order to increase the flux of scattered photons through maintaining an efficient interaction of electron beam and laser beam in a long distance. A novel cavity is proposed to produce and store the J0 Bessel beam based on our present laser Compton scattering experimental setup for gamma-ray generation, and the propagation features and intensity distribution of the J0 Bessel beam inside the cavity are analyzed. The flux of Compton scattering gamma-ray is estimated theoretically and the results reveal that a significant growth are accomplished with the use of J0 Bessel laser beam contrasting with the use of Gaussian laser beam.