Abstract

Narrow-bandwidth photon beams in the x-ray and γ -ray energy ranges are expected to be applied in various fields. An energy recovery linac (ERL)-based laser Compton scattering (LCS) source employing a laser enhancement cavity can produce a high-flux and narrow-bandwidth photon beam. We conducted the first experiment of an ERL-based LCS source in combination with a laser enhancement cavity. We obtained LCS photons with an energy of 6.95±0.01keV by colliding an electron beam of 20 MeV with a laser of 1064 nm wavelength. The photon flux at the interaction point was evaluated to be (2.6±0.1)×107photons/s with an average beam current of 58μA and an average laser power of 10 kW. The energy bandwidth was evaluated to be 0.4% (rms) with an opening angle of 0.14 mrad. The technologies demonstrated in this experiment are applicable for future ERL-based LCS sources.

Details

Title
Narrow-band photon beam via laser Compton scattering in an energy recovery linac
Author
Akagi, T; Kosuge, A; Araki, S; Hajima, R; Honda, Y; Miyajima, T; Mori, M; Nagai, R; Nakamura, N; Shimada, M; Shizuma, T; Terunuma, N; Urakawa, J
Section
ARTICLES
Publication year
2016
Publication date
Nov 2016
Publisher
American Physical Society
e-ISSN
24699888
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2551282912
Copyright
© 2016. This work is licensed under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.