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Journal Articles

Estimation of deposition velocities of HT and $$^{14}$$CO$$_{2}$$ and their fluxes from surface environment with a development of a simultaneous sampling system for the speciation of atmospheric H-3 and C-14

Amano, Hikaru; Koarashi, Jun*; Koma, T.*; Atarashi-Andoh, Mariko; Iida, Takao*

JAERI-Conf 2003-010, p.221 - 225, 2003/09

Concerning atmospherically released tritium (T) and C-14 we have developed a new method, which can analyze their fluxes and the deposition velocities. Firstly, a simultaneous sampling system for the speciation of atmospheric tritium and C-14 has been developed. This system determines varieties of chemical forms of tritium and C-14, namely tritiated water (HTO), elemental tritium gas (HT) and tritiated methane (CH$$_{3}$$T) for tritium, $$^{14}$$CO$$_{2}$$ and 14C H4 for C-14, respectively. Secondly, a new method was developed to determine HT and $$^{14}$$CO$$_{2}$$ deposition velocities. This method can determine their fluxes and the deposition velocities without any tritium and C-14 sources.

Journal Articles

Depth profiles of long lived radionuclides in Chernobyl soils sampled around 10 years after the accident

Amano, Hikaru; Onuma, Yoshikazu*

Journal of Radioanalytical and Nuclear Chemistry, 255(1), p.217 - 222, 2003/01

 Times Cited Count:8 Percentile:49.89(Chemistry, Analytical)

no abstracts in English

Journal Articles

Chemical speciation of radionuclides through the microbial process in soils

Kakiuchi, Hideki; Amano, Hikaru; Ichimasa, Michiko*

Journal of Radioanalytical and Nuclear Chemistry, 252(2), p.437 - 439, 2002/05

 Times Cited Count:6 Percentile:39.54(Chemistry, Analytical)

no abstracts in English

Journal Articles

A Code for predicting the migration of ground additional MOGRA

Amano, Hikaru; *; Uchida, Shigeo*; Tsuzuki, Katsunori; Matsuoka, Shungo*; Ikeda, Hiroshi*; Matsubara, Takeshi*; Kurosawa, Naohiro*

KURRI-KR-80, p.48 - 49, 2001/12

no abstracts in English

Journal Articles

Transfer of long lived radionuclides in Chernobyl soils to edible plants

Amano, Hikaru; Ueno, Takashi; Arkhipov, N.*; Paskevich, S.*; Onuma, Yoshikazu*

Proceedings of 10th International Congress of the International Radiation Protection Association (IRPA-10) (CD-ROM), 6 Pages, 2000/00

no abstracts in English

Journal Articles

Migration of radionuclides through a river system

Matsunaga, Takeshi

JAERI-Conf 99-001, p.258 - 269, 1999/03

no abstracts in English

Journal Articles

Geochemical association of $$^{137}$$Cs and $$^{239}$$,$$^{240}$$Pu in the oligotrophic and mesotrophic lake sediments

Nagao, Seiya; Matsunaga, Takeshi; Muraoka, Susumu

Journal of Radioanalytical and Nuclear Chemistry, 239(3), p.555 - 559, 1999/00

 Times Cited Count:7 Percentile:49.7(Chemistry, Analytical)

no abstracts in English

Journal Articles

The Transfer capability of long-lived chernobyl radionuclides from surface soil to river water in dissolved forms

Amano, Hikaru; Matsunaga, Takeshi; Nagao, Seiya; *; Watanabe, Miki*; Ueno, Takashi; Onuma, Yoshikazu*

Organic Geochemistry, 30, p.437 - 442, 1999/00

 Times Cited Count:28 Percentile:52.71(Geochemistry & Geophysics)

no abstracts in English

Journal Articles

Speciation of environmental radionuclides in the Chernobyl 30km zone

Amano, Hikaru; Hanzawa, Yukiko; Watanabe, Miki*; Matsunaga, Takeshi; Ueno, Takashi; Nagao, Seiya; Yanase, Nobuyuki; Onuma, Yoshikazu*

Proceedings of OECD/NEA Workshop on Evaluation of Speciation Technology, p.211 - 218, 1999/00

no abstracts in English

Journal Articles

Characteristics of distribution and migration of long-lived radionuclides in the Chernobyl 30km zone

Amano, Hikaru; Matsunaga, Takeshi; Ueno, Takashi; Yanase, Nobuyuki; Nagao, Seiya

Proceedings of the 2nd ISTC/SAC Seminar "Large Scale Area Remediation", p.2_75 - 2_81, 1999/00

no abstracts in English

Journal Articles

Characteristics of Chernobyl-derived radionuclides in particulate form in surface waters in the exclusion zone around the Chernobyl Nuclear Power Plant

Matsunaga, Takeshi; Ueno, Takashi; Amano, Hikaru; Y.Tkatchenko*; A.Kovalyov*; Watanabe, Miki*; Onuma, Yoshikazu*

Journal of Contaminant Hydrology, 35, p.101 - 113, 1998/00

 Times Cited Count:44 Percentile:74.63(Environmental Sciences)

no abstracts in English

Journal Articles

Behavior of long lived radionuclides in surface environment around the Chernobly Nuclear Power Plant

Amano, Hikaru; Matsunaga, Takeshi; Ueno, Takashi; Nagao, Seiya; Watanabe, Miki*; *; Onuma, Yoshikazu*

KURRI-KR-18, p.201 - 212, 1997/00

no abstracts in English

Journal Articles

Speciation of Cs,Sr and transuranic elements in natural organic substances of surface soil layers

Amano, Hikaru; Watanabe, Miki*; Onuma, Yoshikazu*; Ueno, Takashi; Matsunaga, Takeshi; N.D.Kuchma*

The Role of Humic Substances in the Ecosystems and in Environmental Protection, 0, p.709 - 716, 1997/00

no abstracts in English

JAEA Reports

None

PNC TJ1600 96-004, 78 Pages, 1996/03

PNC-TJ1600-96-004.pdf:2.2MB

None

Journal Articles

5 years research project between RIAP and JAERI on secondary migration of radionuclides in terrestrial and aquatic environment; Some preliminary results

Amano, Hikaru; Matsunaga, Takeshi; Ueno, Takashi; Onuma, Yoshikazu*; Watanabe, Miki*; Yanase, Nobuyuki; Nagao, Seiya; Sukhoruchkin, A. K.*

Proceedings of 5th International Scientific and Technical Conference on the Problems of Liquidation of Chernobyl Accident Consequences, P. 74, 1996/00

no abstracts in English

16 (Records 1-16 displayed on this page)
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