start-ver=1.4 cd-journal=joma no-vol=66 cd-vols= no-issue=5 article-no= start-page=648 end-page=652 dt-received= dt-revised= dt-accepted= dt-pub-year=2008 dt-pub=200805 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Radioactivity and radon emanation fraction of the granites sampled at Misasa and Badgastein en-subtitle= kn-subtitle= en-abstract= kn-abstract=The chemical composition was analyzed and the radioactivity, radon exhalation rate and emanation fraction were measured to investigate the characteristics of the granites sampled at Misasa and Badgastein, world famous for radon therapy. The Misasa granite was probably composed of quartz, albite and microcline. The Badgastein granite was probably composed of quartz and muscovite. The radon exhalation rates and emanation fractions of the Misasa granite were much higher than those of the Badgastein granite, regardless of the Ra-226 activity concentrations. en-copyright= kn-copyright= en-aut-name=SakodaAkihiro en-aut-sei=Sakoda en-aut-mei=Akihiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=HanamotoKatsumi en-aut-sei=Hanamoto en-aut-mei=Katsumi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=IshimoriYu en-aut-sei=Ishimori en-aut-mei=Yu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=NagamatsuTomohiro en-aut-sei=Nagamatsu en-aut-mei=Tomohiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=YamaokaKiyonori en-aut-sei=Yamaoka en-aut-mei=Kiyonori kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= affil-num=1 en-affil= kn-affil=Graduate School of Health Sciences, Okayama University affil-num=2 en-affil= kn-affil=Graduate School of Health Sciences, Okayama University affil-num=3 en-affil= kn-affil=Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency affil-num=4 en-affil= kn-affil=Graduate School of Health Sciences, Okayama University affil-num=5 en-affil= kn-affil=Graduate School of Health Sciences, Okayama University en-keyword=radioactivity kn-keyword=radioactivity en-keyword=radon emanation fraction kn-keyword=radon emanation fraction en-keyword=granite kn-keyword=granite en-keyword=Misasa kn-keyword=Misasa en-keyword=Badgastein kn-keyword=Badgastein END