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Journal Articles

Vertical distribution of $$^{129}$$I released from the Fukushima Daiichi Nuclear Power Plant in the Kuroshio and Oyashio current areas

Suzuki, Takashi; Otosaka, Shigeyoshi; Kuwabara, Jun; Kawamura, Hideyuki; Kobayashi, Takuya

Marine Chemistry, 204, p.163 - 171, 2018/08

 Times Cited Count:1 Percentile:9.75(Chemistry, Multidisciplinary)

To investigate the penetration of radionuclides released from Fukushima Daiichi Nuclear Power Plant (FDNPP), depth profiles were revealed at Kuroshio current, transition, and Oyashio current areas. The FDNPP-derived $$^{129}$$I was found in surface layer at Oyashio current and transition areas and in sub-surface layer at Kuroshio current area. Moreover, it was found that the FDNPP-derived $$^{129}$$I/$$^{134}$$Cs ratios in the Oyashio current and transition areas were higher than that in the FDNPP reactor. The higher FDNPP-derived $$^{129}$$I/$$^{134}$$Cs ratios suggest three potential mechanisms for the migration of radionuclides in the environment: (1) radioiodine was released more easily than radiocesium by the FDNPP accident, (2) $$^{129}$$I was supplied from the atmosphere by re-emitted $$^{129}$$I from contaminated areas around Fukushima, (3) leaked water that removed radiocesium reached the sampling stations. The FDNPP-derived $$^{129}$$I in sub-surface layer would be transported by the meander of the Kuroshio Extension current.

Journal Articles

Determination of $$^{129}$$I in environmental samples by AMS and NAA using an anion exchange resin disk

Suzuki, Takashi; Bamba, Shigeru*; Kitamura, Toshikatsu; Kabuto, Shoji*; Isogai, Keisuke*; Amano, Hikaru

Nuclear Instruments and Methods in Physics Research B, 259(1), p.370 - 373, 2007/06

 Times Cited Count:12 Percentile:66.47(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Analysis of $$^{129}$$I by Accelerator Mass Spectrometry (AMS) and its application on earth and environmental sciences

Suzuki, Takashi; Muramatsu, Yasuyuki*

Radioisotopes, 54, p.51 - 53, 2005/00

no abstracts in English

Journal Articles

Establishement for the measurement of $$^{129}$$I by accelerator mass spectormetry

Suzuki, Takashi; Kitamura, Toshikatsu; Kabuto, Shoji*; Togawa, Orihiko; Amano, Hikaru

Dai-46-Kai Kankyo Hoshano Chosa Kenkyu Seika Rombun Shorokushu (Heisei-15-Nendo), p.109 - 110, 2004/12

no abstracts in English

Journal Articles

AMS measurement of $$^{129}$$I and its application as an oceanographic tracer

Suzuki, Takashi; Kitamura, Toshikatsu; Kabuto, Shoji*; Togawa, Orihiko; Amano, Hikaru

IAEA-CN-118/84P, p.529 - 530, 2004/10

no abstracts in English

Journal Articles

Status on Tandetron AMS in JAERI-Mutsu

Kitamura, Toshikatsu; Kabuto, Shoji*; Suzuki, Takashi; Togawa, Orihiko; Kitada, Yoshinobu*; Watanabe, Yukiya*

Dai-16-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.27 - 31, 2004/02

no abstracts in English

JAEA Reports

Re-evaluation of neutron nuclear data for $$^{129}$$I and $$^{143}$$Nd

Nakagawa, Tsuneo; Hasegawa, Akira

JAERI-Research 2003-020, 46 Pages, 2003/09

JAERI-Research-2003-020.pdf:1.55MB

The evaluated nuclear data for $$^{129}$$I and $$^{143}$$Nd stored in JENDL-3.3 were investigated comparing with other evaluated data and experimental data. New experimental data were available especially for the capture cross sections of both nuclides. The parameters used in theoretical calculations were modified so as to reproduce those experimental data. The statistical model calculation was performed using the revised parameters. The resonance parameters were also revised so that the cross sections measured in the thermal energy region were reproduced well. The present results were compiled in the ENDF-6 format.

Journal Articles

Selection of chemical forms of iodine for transmutation of $$^{129}$$I

Shirasu, Yoshiro; Minato, Kazuo

Journal of Nuclear Materials, 320(1-2), p.25 - 30, 2003/09

 Times Cited Count:3 Percentile:26.72(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Status on tandetron AMS in JAERI Mutsu

Kitamura, Toshikatsu; Togawa, Orihiko; Aramaki, Takafumi; Suzuki, Takashi; Kabuto, Shoji*

Dai-15-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.1 - 6, 2003/03

no abstracts in English

Journal Articles

New technique for the determination of trace elements using multiparameter coincidence spectrometry

Hatsukawa, Yuichi; Toh, Yosuke; Oshima, Masumi; Hayakawa, Takehito; Shinohara, Nobuo; Kushita, Kohei; Ueno, Takashi; Toyoda, Kazuhiro*

Journal of Radioanalytical and Nuclear Chemistry, 255(1), p.111 - 113, 2003/01

 Times Cited Count:12 Percentile:64.02(Chemistry, Analytical)

no abstracts in English

Journal Articles

Measurement of long-lived nuclides by multi-$$gamma$$ ray analysis

Hatsukawa, Yuichi; Toh, Yosuke; Oshima, Masumi; Hayakawa, Takehito; Shinohara, Nobuo; Kushita, Kohei; Ueno, Takashi

KEK Proceedings 2001-14, p.193 - 194, 2001/06

no abstracts in English

Journal Articles

The AMS facility at the Japan Atomic Energy Research Institute (JAERI)

Aramaki, Takafumi; Mizushima, Toshihiko; Mizutani, Yoshihiko*; Yamamoto, Tadatoshi; Togawa, Orihiko; Kabuto, Shoji*; Kuji, Tomoyuki*; Gottdang, A.*; Klein, M.*; Mous, D. J. W.*

Nuclear Instruments and Methods in Physics Research B, 172(1-4), p.18 - 23, 2000/10

 Times Cited Count:26 Percentile:83.97(Instruments & Instrumentation)

no abstracts in English

Journal Articles

New AMS system at the JAERI-Mutsu

Aramaki, Takafumi; Togawa, Orihiko; Kitamura, Toshikatsu

Proceedings of the International Workshop on Distribution and Speciation of Radionuclides in the Environment, p.350 - 353, 2000/00

no abstracts in English

Journal Articles

Trapping and measuring radioiodine (iodine-129) in cartridge filters

Sakurai, Tsutomu; ; M.-L.Ye*; Kihara, Takehiro; Fujine, Sachio

Journal of Nuclear Science and Technology, 34(2), p.211 - 216, 1997/02

 Times Cited Count:13 Percentile:71.61(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Measurements of thermal neutron capture cross sections and resonance integrals of long-lived fission product nuclei

Kato, Toshio*; Ogata, Yoshimune*; Harada, Hideo*; *; Sekine, Toshiaki;

Global 1995,Int. Conf. on Evaluation of Emerging Nuclear Fuel Cycle Systems, 2, p.1552 - 1559, 1995/00

no abstracts in English

Oral presentation

Intrusion ratio of modern meteoric water into groundwater at Mizunami granite area deduced by I-129

Ota, Tomoko*; Hasegawa, Takuma*; Okamoto, Shunichi*; Watanabe, Yusuke

no journal, , 

no abstracts in English

16 (Records 1-16 displayed on this page)
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