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Title: Sources of the X-rays Based on Compton Scattering

Abstract

The principles of the intense X-rays generation by laser beam scattering on a relativistic electron beam are described and description of facilities assigned to produce the X-rays based on Compton scattering is presented. The possibilities of various types of such facilities are estimated and discussed. The source of the X-rays based on a storage ring with low beam energy is described in details and advantages of the sources of such type are discussed.The results of calculation and numerical simulation carried out for laser electron storage ring NESTOR that is under development in NSC KIPT show wide prospects of the accelerator facility of such type.

Authors:
; ; ; ; ; ; ;  [1]
  1. National Science Center Kharkov Institute of Physics and Technology (Ukraine)
Publication Date:
OSTI Identifier:
21052692
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 879; Journal Issue: 1; Conference: 9. international conference on synchrotron radiation instrumentation, Daegu (Korea, Republic of), 28 May - 2 Jun 2006; Other Information: DOI: 10.1063/1.2435993; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BEAM PRODUCTION; COMPTON EFFECT; COMPUTERIZED SIMULATION; ELECTRON BEAMS; ELECTRONS; LASER RADIATION; PHOTON BEAMS; RELATIVISTIC RANGE; STORAGE RINGS; X RADIATION; X-RAY SOURCES

Citation Formats

Androsov, V., Bulyak, E., Gladkikh, P., Karnaukhov, I., Mytsykov, A., Telegin, Yu., Shcherbakov, A., and Zelinsky, A. Sources of the X-rays Based on Compton Scattering. United States: N. p., 2007. Web. doi:10.1063/1.2435993.
Androsov, V., Bulyak, E., Gladkikh, P., Karnaukhov, I., Mytsykov, A., Telegin, Yu., Shcherbakov, A., & Zelinsky, A. Sources of the X-rays Based on Compton Scattering. United States. doi:10.1063/1.2435993.
Androsov, V., Bulyak, E., Gladkikh, P., Karnaukhov, I., Mytsykov, A., Telegin, Yu., Shcherbakov, A., and Zelinsky, A. Fri . "Sources of the X-rays Based on Compton Scattering". United States. doi:10.1063/1.2435993.
@article{osti_21052692,
title = {Sources of the X-rays Based on Compton Scattering},
author = {Androsov, V. and Bulyak, E. and Gladkikh, P. and Karnaukhov, I. and Mytsykov, A. and Telegin, Yu. and Shcherbakov, A. and Zelinsky, A.},
abstractNote = {The principles of the intense X-rays generation by laser beam scattering on a relativistic electron beam are described and description of facilities assigned to produce the X-rays based on Compton scattering is presented. The possibilities of various types of such facilities are estimated and discussed. The source of the X-rays based on a storage ring with low beam energy is described in details and advantages of the sources of such type are discussed.The results of calculation and numerical simulation carried out for laser electron storage ring NESTOR that is under development in NSC KIPT show wide prospects of the accelerator facility of such type.},
doi = {10.1063/1.2435993},
journal = {AIP Conference Proceedings},
number = 1,
volume = 879,
place = {United States},
year = {Fri Jan 19 00:00:00 EST 2007},
month = {Fri Jan 19 00:00:00 EST 2007}
}
  • No abstract prepared.
  • Recent laser wakefield acceleration experiments have demonstrated the generation of femtosecond, nano-Coulomb, low emittance, nearly monokinetic relativistic electron bunches of sufficient quality to produce bright, tunable, ultrafast x-rays via Compton scattering. Design parameters for a proof-of-concept experiment are presented using a three-dimensional Compton scattering code and a laser-plasma interaction particle-in-cell code modeling the wakefield acceleration process; x-ray fluxes exceeding 10{sup 22} s{sup -1} are predicted, with a peak brightness > 10{sup 20} photons/(mm{sup 2} x mrad{sup 2} x s x 0.1% bandwidth).
  • Coronal hard X-ray (HXR) and continuum {gamma}-ray sources associated with the impulsive phase of solar flares have been the subject of renewed interest in recent years. They have been interpreted in terms of thin-target, non-thermal bremsstrahlung emission. This interpretation has led to rather extreme physical requirements in some cases. For example, in one case, essentially all of the electrons in the source must be accelerated to non-thermal energies to account for the coronal HXR source. In other cases, the extremely hard photon spectra of the coronal continuum {gamma}-ray emission suggest that the low-energy cutoff of the electron energy distribution liesmore » in the MeV energy range. Here, we consider the role of inverse Compton scattering (ICS) as an alternate emission mechanism in both the ultra- and mildly relativistic regimes. It is known that relativistic electrons are produced during powerful flares; these are capable of upscattering soft photospheric photons to HXR and {gamma}-ray energies. Previously overlooked is the fact that mildly relativistic electrons, generally produced in much greater numbers in flares of all sizes, can upscatter extreme-ultraviolet/soft X-ray photons to HXR energies. We also explore ICS on anisotropic electron distributions and show that the resulting emission can be significantly enhanced over an isotropic electron distribution for favorable viewing geometries. We briefly review results from bremsstrahlung emission and reconsider circumstances under which non-thermal bremsstrahlung or ICS would be favored. Finally, we consider a selection of coronal HXR and {gamma}-ray events and find that in some cases the ICS is a viable alternative emission mechanism.« less