title: Polarization-selectable cavity locking method for generation of laser Compton scattered γ-rays.
abstract: Nowadays, generation of energy-tunable, monochromatic γ-rays is needed to establish a nondestructive assay method of nuclear fuel materials. The γ-rays are generated by collision of laser photons stored in a cavity and relativistic electrons. We propose a configuration of an enhancement cavity capable of performing polarization control fabricated by a combination of a four-mirror ring cavity with a small spot inside a cavity and a three-mirror of reflective optics as an image inverter for polarization-selectable γ-rays. The image inverter introduces a phase shift of specific polarization which can be used to generate an error signal to lock an optical cavity at a resonance condition.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kosuge
authors.forename: Michiaki
authors.initials: M
authors.lastname: Mori
authors.forename: Hajime
authors.initials: H
authors.lastname: Okada
authors.forename: Ryoichi
authors.initials: R
authors.lastname: Hajima
authors.forename: Keisuke
authors.initials: K
authors.lastname: Nagashima