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Report No.

Investigation on applicability of fast neutron direct interrogation method to fuel debris, 1; Short term plan and interim report on parameter analysis

Kureta, Masatoshi; Maeda, Makoto; Ozu, Akira; Furutaka, Kazuyoshi; Tobita, Hiroshi; Haruyama, Mitsuo; Komeda, Masao; Hattori, Kentaro

The plan about the material accountancy or measurement of fuel debris which occurs in a Fukushima Daiichi Nuclear Power Plant accident was not decided. It will be determined by the stakeholder in the future. We have developed the fast neutron direct interrogation, FNDI, method which measures the total amount of the fissile expected as promising nondestructive measurement technology. And we started examination about the possibility of whether to be applicable to measurement of the amount of fissile in the container which stored the fuel debris. We reports the short-term plan and the progress about the influence which composition of fuel debris has on the neutron measurement result by the FNDI method.



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