Measurements of concentrations and its ratio of radon decay products in rainwater by gamma-ray spectrometry with a low background germanium detector

Takeyasu, Masanori ; Iida, Takao*; Tsujimoto, Tadashi*; Yamasaki, Keizo*

The each concentration of $^{214}$ Pb and $^{214}$ Bi in rainwater was measured by a low background Ge detector. The concentration of $^{214}$ Pb was a inverse relation with rainfall rate in some rainfall events, and the concentration ratio of $^{214}$ Bi to $^{214}$ Pb was a weak inverse relation with rainfall rate in all rainfall events. These relations were the same as these obtained by the removal model of radon decay products from stratiform cloud.

Language	:	English
Journal	:	International Congress Series
Volume	:	1276
Number	:
Pages	:	p.289 - 290
Publication Year/Month	:	2004/00
Meeting title	:	6th International Conference on High Levels of Natural Radiation and Radon Areas; Radiation Dose and Health Effects (ICHLNRRA 2004)
Held date	:	2004/09
Location (city)	:	Osaka
Location (country)	:	Japan
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Keywords	:	no keyword
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Registration No. : 08-2004-0740
JAEA Abstracts No. :
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