Radon-222 concentrations and the environmental radiation dose rates at Misasa spa districts, Japan

M. Inagaki, S. Nojiri, T. Takemura, T. Koga, H. Morishima, Y. Tanaka, M. Mifune, I. Kobayashi

Research output: Contribution to journalArticle

Abstract

We have been carrying out continuously the measurements of Rn-222 concentrations in air with a set of indoors and outdoors using the convenient and highly sensitive Pico-rad detectors with active carbon adsorber for several years at Misasa spa districts. Rn-222 concentrations in air on geologically formed granite layers were higher than those basaltic layers. And the mean γ radiation dose rates at Misasa spa districts measured by means of optically stimulated luminescence (OSL) dosemeters for 3 months, they showed the similar tendency to those of Rn-222 on geological map.

Original languageEnglish
Pages (from-to)293-294
Number of pages2
JournalInternational Congress Series
Volume1276
DOIs
Publication statusPublished - Feb 1 2005

Keywords

  • Granite
  • In air
  • Liquid scintillation spectrometer
  • Misasa
  • OSL
  • Pico-rad detector
  • Radon-222
  • γ radiation dose rate

ASJC Scopus subject areas

  • Medicine(all)

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