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No.97 (2014/3) >

 
Title :沖縄本島における空間γ線線量率の自動車走行サーベイ
Title alternative :Car-borne survey of terrestrial gamma radiation dose rate in Okinawa Island, Jpan
Authors :喜納, 正剛
平岡, 久枝
石川, 慎之助
新垣, 玲奈
藤谷, 卓陽
城間, 吉貴
古川, 雅英
Authors alternative :Kina, Seigou
Hiraoka, Hisae
Ishikawa, Shinnosuke
Shingaki, Reina
Fujitani, Takuyo
Shiroma, Yoshitaka
Furukawa, Masahide
Issue Date :31-Mar-2014
Abstract :The absorbed dose rate in air due to terrestrial gamma radiation in Okinawa-jima, main island of Okinawa prefecture located in the subtropical region of Japan, was estimated at 4967 points on the paved roads by car-borne survey with NaI(Tl) scintillation survey meter. Based on the data that were converted inside into outside the car, the mean, minimum and maximum of the outdoor dose rates on the pavement were calculated to be 19.0, 10.4 and 47.7 nGy h^-1, respectively. Also a contour map of the dose rate was made by simple interpolation. In general, it was found that the northern part of the island has higher dose rate compared with the southern one.
Type Local :紀要論文
ISSN :0286-9640
Publisher :琉球大学理学部
URI :http://hdl.handle.net/20.500.12000/28894
Citation :琉球大学理学部紀要 = BULLETIN OF THE FACULTY OF SCIENCE UNIVERSITY OF THE RYUKYUS no.97 p.39 -45
Appears in Collections:No.97 (2014/3)

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