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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0124433
论文题名:	Estimation of External Dose by Car-Borne Survey in Kerala, India
作者:	Masahiro Hosoda; Shinji Tokonami; Yasutaka Omori; Sarata Kumar Sahoo; Suminori Akiba; Atsuyuki Sorimachi; Tetsuo Ishikawa; Raghu Ram Nair; Padmavathy Amma Jayalekshmi; Paul Sebastian; Kazuki Iwaoka; Naofumi Akata; Hiromi Kudo
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2015
发表日期:	2015-4-17
卷:	10, 期:4
语种:	英语
英文关键词:	Dosimetry ; Beaches ; Grasses ; Photons ; India ; Ionizing radiation ; Monte Carlo method ; Global positioning system
英文摘要:	A car-borne survey was carried out in Kerala, India to estimate external dose. Measurements were made with a 3-in × 3-in NaI(Tl) scintillation spectrometer from September 23 to 27, 2013. The routes were selected from 12 Panchayats in Karunagappally Taluk which were classified into high level, mid-level and low level high background radiation (HBR) areas. A heterogeneous distribution of air kerma rates was seen in the dose rate distribution map. The maximum air kerma rate, 2.1 μGy/h, was observed on a beach sand surface. 232Th activity concentration for the beach sand was higher than that for soil and grass surfaces, and the range of activity concentration was estimated to be 0.7–2.3 kBq/kg. The contribution of 232Th to air kerma rate was over 70% at the measurement points with values larger than 0.34 μGy/h. The maximum value of the annual effective dose in Karunagappally Taluk was observed around coastal areas, and it was estimated to be 13 mSv/y. More than 30% of all the annual effective doses obtained in this survey exceeded 1 mSv/y.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0124433&type=printable
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资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/21336
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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journal.pone.0124433.PDF（2070KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Hirosaki University Graduate School of Health Sciences, Aomori, Japan;Institute of Radiation Emergency Medicine, Hirosaki University, Aomori, Japan;Fukushima Medical University, Fukushima, Japan;National Institute of Radiological Sciences, Chiba, Japan;Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan;Fukushima Medical University, Fukushima, Japan;Fukushima Medical University, Fukushima, Japan;Regional Cancer Center, Kerala, India;Natural Background Radiation Cancer Registry, Kerala, India;Regional Cancer Center, Kerala, India;Institute of Radiation Emergency Medicine, Hirosaki University, Aomori, Japan;National Institute for Fusion Science, Gifu, Japan;Hirosaki University Graduate School of Health Sciences, Aomori, Japan

Recommended Citation:

Masahiro Hosoda,Shinji Tokonami,Yasutaka Omori,et al. Estimation of External Dose by Car-Borne Survey in Kerala, India[J]. PLOS ONE,2015-01-01,10(4)

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