title: Development of a Cerenkov radiation sensor to detect low-energy beta-particles.
abstract: We fabricated a novel fiber-optic Cerenkov radiation sensor using a Cerenkov radiator for measuring beta-particles. Instead of employing a scintillator, transparent liquids having various refractive indices were used as a Cerenkov radiator to serve as a sensing material. The experimental results showed that the amount of Cerenkov radiation due to the interaction with beta-particles increased as the refractive index of the Cerenkov radiator was increased as a results of a decrease of the Cerenkov threshold energy for electrons.
authors.affiliation: School of Biomedical Engineering, College of Biomedical and Health Science, Research Institute of Biomedical Engineering, Konkuk University, Chungju 380-701, Korea.
authors.forename: Wook Jae
authors.initials: WJ
authors.lastname: Yoo
authors.forename: Ki-Tek
authors.initials: KT
authors.lastname: Han
authors.forename: Sang Hun
authors.initials: SH
authors.lastname: Shin
authors.forename: Jeong Ki
authors.initials: JK
authors.lastname: Seo
authors.forename: Dayeong
authors.initials: D
authors.lastname: Jeon
authors.forename: Bongsoo
authors.initials: B
authors.lastname: Lee
mesh_terms: D001610:Beta Particles; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D010783:Photometry / Q000295:instrumentation*; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
keywords: Beta-particle; Cerenkov radiation; Cerenkov radiator; Optical fiber; Refractive index