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Kijima, Yuichi; Yamamoto, Yoichi
no journal, ,
The flow of analysis for nuclear test event in the Japanese NDC-2 will be presented. When the information on a nuclear test event is obtained from the Secretariat of the CTBT National operation system of Japan (NOSJ), the first thing to be done in the NDC-2 is to forecast a possible movement of a virtual radioactive plume emitted from the nuclear test site by the ATM analysis. Based on the analysis results, radionuclide stations to be monitored are selected and the radionuclide data from the stations are analysed in detail. The results of both the ATM analysis and the radionuclide analysis are reported to the Secretariat of NOSJ. A part of studies on the released condition of the ATM analysis will also be presented.
Kijima, Yuichi; Yamamoto, Yoichi
no journal, ,
The JPX38 Level C episode of 8-9 April 2013 is thought of as delayed release from the DPRK 2013 event from the aspect of the radioxenon isotope ratio and the result of the possible source location analysis. The Japanese NDC-2 carried out the comparison of radioxenon detections between the DPRK 2013 event and the DPRK 2016 events. The results of the possible source location analysis for the JPX38 Level C episode of 17-19 February 2016 and the CNX22 episode of 22-24 September 2016 will also be presented.