著者

大橋 靖雄

出版者

Japan Health Physics Society

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.20, no.4, pp.357-369, 1985

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In this paper, the possibility of the biological monitoring by <i>Tradescantia</i> for radiation effluents from a power reactor site is considered. Data for analysis were obtained through the experimental study which had been conducted by Expert Committee on Biological Effects of Environmental Radiation and carried out from 1979 to 1981 near to Takahama Nuclear Power Plant in Fukui Prefecture. Measurements had been taken on the mutation frequency in <i>Tradescantia</i> stamen hairs and environmental factors including evaluated radioactive airborne effluents, natural airborne radioactivity, weather conditions and air pollution indices. This paper is coupled with Yamaguchi <i>et al.</i> (1985); while the latter tackles the problem, mainly by comparing the observed (calculated) concentration levels of radioactive effluents with biological thresholds, this paper presents the results of statistical data analysis which revealed the following: (1) There is highly significant negative correlation between temperature before blooming and mutation frequency. (2) After adjusting the effect of temperature, there is no significant association between radioactive effluents and mutation frequency.

著者

甲斐 倫明

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.35, no.1, pp.101-103, 2000 (Released:2010-02-25)

著者

X. George XU

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.41, no.3, pp.188-193, 2006 (Released:2010-08-05)

参考文献数

37

被引用文献数

1 1

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We are at a critical time in the history of radiation protection dosimetry. The paradigm shift away from the more-than-30-years-old stylized human models is imminent with the development of 30 voxel-based tomographic models in recent years that are based on medical images. Recently, researchers gathered at an international conference to share the latest work and to establish collaborations. This invited review paper introduces various types of modelling and summarizes the latest developments including a Consortium on Computational Human Phantoms (CCHP) that is aimed at facilitating intercomparison and sharing of data for radiation protection purposes.

著者

草間 朋子 大柿 一史 吉澤 康雄

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.17, no.2, pp.151-155, 1982 (Released:2010-02-25)

参考文献数

3

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The present study was designed to investigate the decontamination procedures in first aid for wounds contaminated with radionuclides. Abrasion of mouse skin was contaminated with 58CoCl2. Irrigation by decontamination fluids began at 2min after administration of the radionuclide and continued for 14min. Tap water, 0.5% Hyamine solution or 10% Ca-DTPA solution were used as the decontamination fluids. Radioactivities of whole body, wounded skin surface and washed solution were measured with an animal counter with 5cm NaI (Tl) and a well-type auto-gamma-counter. Decontamination effectiveness were expressed as follows: (1) absorption rate of radionuclide through the wound and (2) residual rate of radionuclide on the wound. More than 20% of the radionuclide applied on the wounded skin was absorbed in 15min after contamination. The absorption rate decreased to 2% by the decontamination procedures. The Ca-DTPA solution reduced the residual rate of radionuclide on the wounds. The results suggested that the decontamination for the contaminated wounds should begin as soon as possible. Irrigation with 0.5% Hyamine solution has been advocated for the decontamination in the first aid.

著者

渡部 真

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.9, no.3, pp.159-172, 1974 (Released:2010-02-25)

参考文献数

34

著者

佐々木 朋三 田代 純利 藤永 英司 石井 友章 軍司 康義

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.37, no.3, pp.208-221, 2002 (Released:2010-08-05)

参考文献数

20

被引用文献数

6 10

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The transfer factors (TFs) of uranium (U), thorium (Th), radium (Ra) and lead (Pb) from soil to agricultural products were determined in order to estimate the internal radiation dose to the human body through ingestion. Samples of rice, potato, onion, cabbage, mandarin orange, spinach, apple and soil were collected from various districts in Japan. After appropriate pretreatment of the samples, concentrations in the sample solutions were measured by ICP-MS (for U, Th and Pb) and liquid scintillation counter (for Ra). It was recognized that TFs were 4.9×10-6 (apple) and 3.6×10-4 (spinach) for U, 2.8×10-6 (apple) and 2.3×10-4 (spinach) for Th, and 4.0×10-3 (hulled rice), 7.0×10-5 (onion) and 5.0×10-3 (hulled rice) for Pb. The TF of Ra, however, was not determined due to detection limitations. TF values obtained in the present study range from the same order of magnitude to 1/100 compared to the data in TRS364 as reported by IAEA. It was revealed that the internal radiation dose caused by the intake of uranium series radioactive nuclides through agricultural food ingestion was 16μSv/y, where Pb was the most contributory nuclide.

著者

高原 省五 加藤 尊秋 本間 俊充

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.48, no.4, pp.180-192, 2013 (Released:2014-08-08)

参考文献数

70

被引用文献数

1 3

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The monetary value of unit collective dose, which represents the benefit of dose reduction due to the protective measures, is a key element in implementing the optimization principle of the radiation protection. The objectives of this paper are to evaluate the country-specific monetary value of unit collective dose reflecting the economic and population characteristics in Japan, as well as to analyze the balance of the cost and benefit of the radiological protective measures. When we calculated the monetary values of unit collective dose in Japan using human capital method and willingness to pay approach, the values were around several million yen/person-Sv and 20 million yen/person-Sv, respectively. In addition, we surveyed the data on costs of radiological protective measures per the avoided person-Sv. As the results of comparing the cost and benefit, the costs of radiological protective measures to reduce the concentration of radon in homes and to protect workers in nuclear facilities were balanced with the benefit. On the other hand, the costs of radionuclide emission control measures at industrial facilities tend to be higher than the benefit of those measures.

著者

遠藤 啓吾

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.47, no.2, pp.81-82, 2012 (Released:2012-12-07)

被引用文献数

1

著者

吉沢 康雄 草間 朋子

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.11, no.2, pp.123-128, 1976 (Released:2010-02-25)

参考文献数

26

被引用文献数

5 13

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Various questions arise in the application of ICRP “Standard Man” values to Japanese. One of the questions is that “Standard Man” values of the thyroid are different from normal Japanese values. A systematic survey of past reports was carried out with a view to search for normal Japanese values of the thyroid. The subjects of search were weight, iodine content and iodine uptake rate (fW) of the thyroid. These are important factors in the estimation of the radiation dose of the thyroid caused by internal contamination of radioiodine, and are foreseen to have the difference between Japanese and “Standard Man.” The result of study suggested that the weight of the thyroid of normal Japanese is about 19g for adult male and about 17g for adult female, and that the iodine content is 12-22mg and iodine uptake rate (fW) is about 0.2.

著者

折戸 武郎 越田 吉郎 前川 龍一 平木 辰之助 古賀 佑彦 竹内 昭

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.20, no.2, pp.145-150, 1985 (Released:2010-02-25)

参考文献数

11

被引用文献数

1 1

著者

小林 恒夫 高久 祐治

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.26, no.2, pp.117-122, 1991 (Released:2010-02-25)

参考文献数

13

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Comparisons of natural radiation at the new and the old campus of Fukushima Medical College have been made for three types of measurement: (1) gamma dosimetry using photon-counting thermoluminescent dosimeter; (2) gamma spectrometry using germanium semiconductor detector; (3) measurement of atmospheric radon daughter concentrations using alpha spectrometry and G. M. tube. After our college moved, the gamma dose was reduced. Total counts and each peak count in gamma spectrum also were reduced except for thoron daughter peaks. Indoor atmospheric radon daughter concentrations were drastically reduced, while the outdoor concentrations remained the same level. Indoor G. M. tube background also was reduced. Annual effective dose equivalent from gamma rays and radon daughters was estimated to be 1.14mSv and 0.57mSv for the new and the old campus, respectively.

著者

緒方 裕光 馬替 純二

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.40, no.4, pp.331-340, 2005 (Released:2010-08-05)

参考文献数

58

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In this paper, an outline of the biological and epidemiological evidence for radiation protection is presented together with the strengths and limitations of these studies in radiation risk evaluation. Various types of research can provide useful information to complement the risk estimates based on atomic-bomb survivor studies, particularly the effects of low-dose and lowdose rate radiation. Some basic issues in synthesizing scientific information for radiation risk evaluation are also discussed.

著者

西 健雄 熊澤 蕃 伊藤 精 沼宮内 弼雄

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.15, no.2, pp.111-118, 1980 (Released:2010-02-25)

参考文献数

6

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The statistical analyses were made with regard to the distribution of annual radiation doses of the workers in the Japan Atomic Energy Research Institute (JAERI) in order to clarify the characteristics of exposure pattern and to examine the goodness of fit of the data to the theoretical probability distributions.The following conclusions were obtained.1) A log-normal distribution provide a good fit to the annual dose distributions.2) A double exponential distributions provide a good fit to the distributions of annual maximum dose.3) A log-normal distribution provide a good fit to the distributions of the ratio of annual maximum dose to average one.4) The annual maximum dose arranged in the order of their magnitude is expressed by an exponential function and the dose is decreased to 1/e with every eleventh.

著者

高田 千恵

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.47, no.1, pp.34-36, 2012 (Released:2012-09-06)

被引用文献数

1

著者

渡邉 正己

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.47, no.2, pp.77-77, 2012 (Released:2012-12-07)

著者

髙橋 知之

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.47, no.1, pp.9-12, 2012 (Released:2012-09-06)

参考文献数

9

被引用文献数

1

著者

植頭 康裕 渡辺 均 圓尾 好宏 篠原 邦彦

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.36, no.3, pp.207-212, 2001 (Released:2010-02-25)

参考文献数

10

著者

甲斐 倫明

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.45, no.4, pp.311-312, 2010 (Released:2011-07-12)

著者

甲斐 倫明

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.45, no.1, pp.90-92, 2010 (Released:2011-02-04)

参考文献数

3

著者

長岡 鋭 坂本 隆一 斎藤 公明 堤 正博 森内 茂

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.23, no.4, pp.309-315, 1988 (Released:2010-02-25)

参考文献数

15

被引用文献数

3 6

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In order to clarify the diminution characteristics of terrestrial gamma ray exposure rate due to snow cover, measurements were performed on the ground with and without snow cover. The diminution factors observed were 0.36-0.17 for 12-23g/cm2 of water equivalent of the snow cover. According to a calculation by the Monte Carlo method, the corresponding diminution factors were 0.32-0.16. They agreed well as a whole, while the fluctuation of the diminution factors based on the measured exposure rate were fairly large. The fluctuation is deemed to be due to the inhomogeneity in the distribution of the snow cover as well as the gamma ray field. The fluctuation is expected to decrease with increase in the degree of their homogeneity.