title: Feasibility of fiber-optic radiation sensor using Cerenkov effect for detecting thermal neutrons.
abstract: In this research, we propose a novel method for detecting thermal neutrons with a fiber-optic radiation sensor using the Cerenkov effect. We fabricate a fiber-optic radiation sensor that detects thermal neutrons with a Gd-foil, a rutile crystal, and a plastic optical fiber. The relationship between the fluxes of electrons inducing Cerenkov radiation in the sensor probe of the fiber-optic radiation sensor and thermal neutron fluxes is determined using the Monte Carlo N-particle transport code simulations. To evaluate the fiber-optic radiation sensor, the Cerenkov radiation generated in the fiber-optic radiation sensor by irradiation of pure thermal neutron beams is measured according to the depths of polyethylene.
authors.affiliation: Department of Biomedical Engineering, Research Institute of Biomedical Engineering, Konkuk University, Chungju 380-701, South Korea.
authors.forename: Kyoung Won
authors.initials: KW
authors.lastname: Jang
authors.forename: Takahiro
authors.initials: T
authors.lastname: Yagi
authors.forename: Cheol Ho
authors.initials: CH
authors.lastname: Pyeon
authors.forename: Wook Jae
authors.initials: WJ
authors.lastname: Yoo
authors.forename: Sang Hun
authors.initials: SH
authors.lastname: Shin
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Misawa
authors.forename: Bongsoo
authors.initials: B
authors.lastname: Lee
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D009502:Neutrons; D011874:Radiometry / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*