title: Monte Carlo simulation of a beta particle detector for food samples.
abstract: The accident at the Fukushima Daiichi Nuclear Power Plant in March 2011 released radionuclides into the environment. There is concern that (90)Sr will be concentrated in seafood. To measure the activities of (90)Sr in a short time without chemical processes, we have designed a new detector for measuring activity that obtains count rates using 10 layers of proportional counters that are separated by walls that absorb beta particles. Monte Carlo simulations were performed to confirm that its design is appropriate.
authors.affiliation: National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba 305-8568, Japan. yss.sato@aist.go.jp
authors.forename: Y
authors.initials: Y
authors.lastname: Sato
authors.forename: H
authors.initials: H
authors.lastname: Takahashi
authors.forename: T
authors.initials: T
authors.lastname: Yamada
authors.forename: Y
authors.initials: Y
authors.lastname: Unno
authors.forename: A
authors.initials: A
authors.lastname: Yunoki
mesh_terms: D001610:Beta Particles; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005504:Food Analysis / Q000295:instrumentation*; D005507:Food Contamination, Radioactive / Q000032:analysis*; D015233:Models, Statistical; D009010:Monte Carlo Method; D011829:Radiation Dosage; D011868:Radioisotopes / Q000032:analysis*; D015203:Reproducibility of Results; D012588:Scintillation Counting / Q000295:instrumentation*; D012680:Sensitivity and Specificity
chemical_list: D011868:Radioisotopes
keywords: (90)Sr; Beta particle detector; EGS5; MPI; Monte Carlo simulation