Radiological States around the Kraton-4 Underground Nuclear Explosion Site in Sakha | Zendy

Jun Takada | Zendy; VARELY E. STEPANOV | Zendy; DANIEL P. YEFREMOV | Zendy; Takahiro Shintani | Zendy; Akitane Akiyama | Zendy; Masami Fukuda | Zendy; Masaharu Hoshi | Zendy

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Radiological States around the Kraton-4 Underground Nuclear Explosion Site in Sakha

Author(s) -

Jun Takada,

VARELY E. STEPANOV,

DANIEL P. YEFREMOV,

Takahiro Shintani,

Akitane Akiyama,

Masami Fukuda,

Masaharu Hoshi

Publication year - 1999

Publication title -

journal of radiation research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.643

H-Index - 60

eISSN - 1349-9157

pISSN - 0449-3060

DOI - 10.1269/jrr.40.223

Subject(s) - radiological weapon , russian federation , epicenter , environmental science , geology , radiochemistry , chemistry , geography , seismology , regional science

A radiological survey around the site of Kraton-4, an underground nuclear explosion (Yield of 20 kt, depth of 560 m, 1978) in Sakha was carried out in March 1998. Gamma survey and in-situ spectroscopy on the ground exhibited quite normal levels: a dose rate of 0.022 microSv/h and Cs-137 surface contamination of less than 1.1 kBq/m2 around the hypocenter. The results suggested no remarkable leakage of radioactivity from the epicenter to the ground surface at least not for non-rare gas elements as of 1998.

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