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2. Naturally occurring radionuclides and rare earth elements pattern in weathered Japanese soil samples

Author

Sarata, Kumar Sahoo, Hosoda, Masahiro, Takahashi, Hiroyuki, Sorimachi, Atsuyuki, Ishikawa, Tetsuo, Tokonami, Shinji, and Uchida, Shigeo

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

From the viewpoint of radiation protection, determination of natural radionuclides such as U and Th in soil samples are important. In recent years, attention has been drawn to the development and steady introduction of analytical methods suitable for quantification of Th and U tracers. The geochemical behavior of thorium, uranium and rare earth elements (REEs) are relatively close to one another while compared to other elements in geological environment. Radioactive elements like 232Th and 238U along with their daughter products (e.g. 226Ra) are present in most of the environmental matrices and can be transferred to living bodies by different pathways that can lead to the sources of exposure of man. Therefore, it is necessary to monitor those natural radionuclides in weathered soil samples to assess the possible hazards. The activity concentrations of 226Ra, 232Th, and 40K in soils have been measured using a -ray spectroscopy system with high purity germanium detector. The uranium, thorium and REEs were determined from the same sample using inductively coupled plasma mass spectrometry (ICP-MS). For example, granitic rocks contain higher amounts of U, Th and light REEs compared to other igneous rocks such as basalt and andesites. Therefore, it is necessary to understand the interaction between REEs and nature of soils since soils are complex heterogeneous mixture of organic and inorganic solids, water and gases. In this paper, we will discuss about distribution pattern of 226Ra, 232Th and 238U along with REEs in soil samples of weathered acid rock (granite and ryolite) collected from a few prefectures of Japan: (1) Hokkaido (2) Aomori (3) Miyagi (4) Gunma (5) Gifu (6) Hyogo (7) Hiroshima (8) Ehime (9) Kochi (10) Fukuoka (11) Kagoshima and (12) Okinawa., Third International Geo-Hazards Research Symposium

Published
2012

3. Measurements of radon and thoron concentrations in cave dwellings in Gansu province, China

Author

Sorimachi, Atsuyuki, Tokonami, Shinji, Miroslaw, JANIK, Iwaoka, Kazuki, Omori, Yasutaka, Ishikawa, Tetsuo, Sarata, Kumar Sahoo, Yoshinaga, Shinji, Yonehara, Hidenori, Sakai, Kazuo, Akiba, Suminori, and Sun, Quanfu

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

4. Evaluation of the efficiency of simplified liquid scintillation counter for measuring Rn-222 concentration in water using high efficiency mineral oil scintillator

Author

Araki, Saori, Tanaka, Ryoko, Yasuoka, Yumi, Mukai, Takahiro, Takizawa, Hideo, Onuma, Syoko, Ishikawa, Tetsuo, Fukuhori, Nobutoshi, Furukawa, Masahide, and Tokonami, Shinji

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

5. Development of a simple technique for measuring the activity size distribution of attached radon and thoron progeny for dose assessment

Author

Chutima, Kranrod, Supitcha, Chanyotha, Nares, Chankow, Tokonami, Shinji, Sorimachi, Atsuyuki, and Ishikawa, Tetsuo

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

6. Distribution of terrestrial gamma dose rate in the eastern coastal area of Odisha, India

Author

Gusain, G.S., Rautela, B.S., Sarata, Kumar Sahoo, Ishikawa, Tetsuo, Omori, Yasutaka, Sorimachi, Atsuyuki, Tokonami, Shinji, and Rakesh, Ramola

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

7. Levels of thoron and its progeny in high background radiation area of southeastern coast of Odisha, India

Author

Rakesh, Ramola, Gusain, G.S., Rautela, B.S., Sagar, D.V., Ganesh, Prasad, Sarata, Kumar Sahoo, Ishikawa, Tetsuo, Omori, Yasutaka, Miroslaw, JANIK, Sorimachi, Atsuyuki, and Tokonami, Shinji

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

8. Radon and thoron doses in kindergartens and elementary schools in Slovenia

Author

Vaupotic, Janja, Smerajec, Mateja, Kavasi, Norbert, Ishikawa, Tetsuo, Yonehara, Hidenori, and Tokonami, Shinji

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

9. Measurement of radon exhalation rate and gamma ray dose rate in Hiroshima prefecture, Japan

Author

Ganesh, Prasad, Ishikawa, Tetsuo, Hosoda, Masahiro, Sarata, Kumar Sahoo, Kavasi, Norbert, Sorimachi, Atsuyuki, Tokonami, Shinji, and Uchida, Shigeo

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

10. Preliminary results of indoor radon thoron survey in Hungary

Author

Somlai, J., Ishikawa, Tetsuo, Omori, Yasutaka, Mishra, R., K., Sapra B., S., Mayya Y., Tokonami, Shinji, Csordas, A., and Kovacs, Tibor

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

11. Thorium as well as rare earth elements in air particulates of a natural high background radiation area in India

Author

Sarata, Kumar Sahoo, Tokonami, Shinji, Ishikawa, Tetsuo, Omori, Yasutaka, Sorimachi, Atsuyuki, Arae, Hideki, Hosoda, Masahiro, and Rakesh, Ramola

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

12. Thorium, uranium and rare earth elements concentration in weathered Japanese soil samples

Author

Sarata, Kumar Sahoo, Hosoda, Masahiro, Ganesh, Prasad, Takahashi, Hiroyuki, Sorimachi, Atsuyuki, Ishikawa, Tetsuo, Tokonami, Shinji, and Uchida, Shigeo

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

13. In-situ comparison of Radopot and Raduet detectors at undergrounds workplaces in Hungary

Author

Kavasi, Norbert, Tamas, Vigh, Nemeth, Csaba, Ishikawa, Tetsuo, Yonehara, Hidenori, Sorimachi, Atsuyuki, Hosoda, Masahiro, and Tokonami, Shinji

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposure and Low Dose Epidemiological Studies

Published
2012

14. Radon Emanation and dose estimation from artificial radon spa source

Author

Hosoda, Masahiro, Ishikawa, Tetsuo, Sarata, Kumar Sahoo, Sorimachi, Atsuyuki, Yasuoka, Yumi, Miroslaw, JANIK, Katoh, Shinichi, Ogashiwa, Susumu, and Tokonami, Shinji

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

15. Determination of the minimum measurement time for radon concentration

Author

Miroslaw, JANIK, Loskiewicz, K, Tokonami, Shinji, Kryzstof, Kozak, Jadwiga, Mazur, and Ishikawa, Tetsuo

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

16. Environmental radiation in Izu-Oshima island after the accident of Fukushima Daiichi Nuclear Power Plant

Author

Fukushi, Masahiro, Sugino, Masato, Narita, H, Shimizu, H, Akimoto, A, Ishikawa, Tetsuo, Sarata, Kumar Sahoo, Hosoda, Masahiro, and Tokonami, Shinji

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

17. Characteristics of radon and thoron exhalation rates in Okinawa, subtropical region of Japan

Author

Shiroma, Yoshitaka, Kina, Seigo, Fujitani, Takuyo, Hosoda, Masahiro, Sorimachi, Atsuyuki, Ishikawa, Tetsuo, Sarata, Kumar Sahoo, Tokonami, Shinji, and Furukawa, Masahide

Subjects
health care facilities, manpower, and services, education, reproductive and urinary physiology, humanities, health care economics and organizations
Abstract

International Symposium on Natural Radiation Exposures and Low Dose Radiation Epidemiological Studies

Published
2012

18. Measurement of unattached fraction of radon progeny in Hungarian workplaces

Author

Kavasi, Norbert, Vaupotic, Janja, Kobal, Ivan, Kovacs, Tidor, Ishikawa, Tetsuo, and Tokonami, Shinji

Subjects
health care facilities, manpower, and services, education, health care economics and organizations
Abstract

International conference on Radioecology and environmental radioactivity

Published
2011

19. Thermal Ionization Mass Spectrometry (TIMS) and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) at NIRS

Author

Sarata, Kumar Sahoo, Parami, Vangeline, Hassan, Nabil Mohamed Mohamed, Chutima, Kranrod, Yonehara, Hidenori, Ishikawa, Tetsuo, and Tokonami, Shinji

Subjects
musculoskeletal diseases, health care facilities, manpower, and services, education, health care economics and organizations
Abstract

The First Meeting for the International Joint Research on Construction of Natural Radiation Exposure Study Network

Published
2009

20. Radon and thoron reference chambers at NIRS

Author

Miroslaw, JANIK, Tokonami, Shinji, Sorimachi, Atsuyuki, Ishikawa, Tetsuo, Sarata, Kumar Sahoo, Takahashi, Hiroyuki, and Hosoda, Masahiro

Subjects
musculoskeletal diseases, health care facilities, manpower, and services, education, health care economics and organizations
Abstract

The First Meeting for the International Joint Research on Construction of Natural Radiation Exposure Study Network

Published
2009

21. Construction of natural radiation exposure study network

Author

Tokonami, Shinji, Sorimachi, Atsuyuki, Miroslaw, JANIK, Ishikawa, Tetsuo, Sarata, Kumar Sahoo, Yoshinaga, Shinji, Yonehara, Hidenori, Sakai, Kazuo, Yamazawa, Hiromi, Akiba, Suminori, Furukawa, Masahide, Sun, Quanfu, Kim, Y.J., Supitcha, Chanyotha, and Rakesh, Ramola

Subjects
musculoskeletal diseases, health care facilities, manpower, and services, education, health care economics and organizations
Abstract

The First Meeting for the International Joint Research on Construction of Natural Radiation Exposure Study Network

Published
2009

22. Research plan at NIRS

Author

Sorimachi, Atsuyuki, Tokonami, Shinji, Ishikawa, Tetsuo, Sarata, Kumar Sahoo, Miroslaw, JANIK, Chutima, Kranrod, Yoshinaga, Shinji, Yonehara, Hidenori, and Sakai, Kazuo

Subjects
musculoskeletal diseases, health care facilities, manpower, and services, education, health care economics and organizations
Abstract

The First Meeting for the International Joint Research on Construction of Natural Radiation Exposure Study Network

Published
2009

23. Radon studies at NIRS

Author

Ishikawa, Tetsuo, Sorimachi, Atsuyuki, Miroslaw, JANIK, Hosoda, Masahiro, Chutima, Kranrod, Sarata, Kumar Sahoo, and Tokonami, Shinji

Subjects
musculoskeletal diseases, health care facilities, manpower, and services, education, health care economics and organizations
Abstract

The First Meeting for the International Joint Research on Construction of Natural Radiation Exposure Study Network

Published
2009

24. Radon study in waste management of uranium disposal

Author

Hosoda, Masahiro, Tokonami, Shinji, Ishikawa, Tetsuo, Sarata, Kumar Sahoo, Sorimachi, Atsuyuki, Takahashi, Hiroyuki, Miroslaw, JANIK, and Uchida, Shigeo

Subjects
musculoskeletal diseases, health care facilities, manpower, and services, education, health care economics and organizations
Abstract

The First Meeting for the International Joint Research on Construction of Natural Radiation Exposure Study Network

Published
2009

26. Identification and assessment of elevated exposure to natural radiation in Bakan region(Serbia)

Author

Zunic, Zora, Ilia, Yarmoshenko, Nenad, Veselinovic, Michael, Zhukovsky, Ujic, Predrag, Celikovic, Igor, Mc, Laughlin James, Simos, Simopoulos, Aleksandar, Birovljev, Fujimoto, Kenzo, Johan, Paridaens, Flavio, Trotti, Hans, Vanmarcke, Bajram, Jakupi, Gordana, Milic, Francesco, Bochicchio, Giancarlo, Ciotoli, Pawel, Olko, Kryzstof, Kozak, Kevin, Kelleher, Macej, Budzanowski, Jerzy, Mietelski, Tokonami, Shinji, Rakesh, Ramola, Sarata, Kumar Sahoo, and Micael, Waligorski

Subjects
health care facilities, manpower, and services, education, health care economics and organizations
Abstract

International Conference on Radioecology & Environmental Radioactivity

Published
2008

29. Radiological qualification of manganese mud

Author

Kavasi, N., Somlai, J., Tokonami, Shinji, Ishikawa, Tetsuo, Yatabe, Yoshinori, and Tibor, Kovacs

Subjects
health care facilities, manpower, and services, education, health care economics and organizations
Abstract

International Conference on Environmental Radioactivity

Published
2007

32. Eolian Dust 'Kosa' from China is an Enhancer for the Radioactivity in Japan

Author

Furukawa, Masahide, Tokonami, Shinji, Ishikawa, Tetsuo, Sun, Quanfu, Hou, Chongsong, and Narazaki, Yukinori

Subjects
education, bacteria, equipment and supplies, complex mixtures, health care economics and organizations
Abstract

International Conference on Radioactivity in the Environment

Published
2002

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