Monte Carlo simulation of a beta particle detector for food samples

Y Sato; H Takahashi; T Yamada; Y Unno; A Yunoki

doi:10.1016/j.apradiso.2013.03.063

Monte Carlo simulation of a beta particle detector for food samples

Appl Radiat Isot. 2013 Nov:81:162-4. doi: 10.1016/j.apradiso.2013.03.063. Epub 2013 Mar 27.

Authors

Y Sato¹, H Takahashi, T Yamada, Y Unno, A Yunoki

Affiliation

¹ 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

PMID: 23608140
DOI: 10.1016/j.apradiso.2013.03.063

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.

Keywords: (90)Sr; Beta particle detector; EGS5; MPI; Monte Carlo simulation.

MeSH terms

Beta Particles*
Computer Simulation
Computer-Aided Design
Equipment Design
Equipment Failure Analysis
Food Analysis / instrumentation*
Food Contamination, Radioactive / analysis*
Models, Statistical
Monte Carlo Method
Radiation Dosage
Radioisotopes / analysis*
Reproducibility of Results
Scintillation Counting / instrumentation*
Sensitivity and Specificity

Substances

Radioisotopes