The control and verification of weapon-usable plutonium

The problems about the control and verification of weapon-usable plutonium were mainly studied from the proliferation point of view. (1) The production and the characteristics of military plutonium were discussed; the methods of estimating military plutonium inventories were analysed and the aspects of plutonium production cutoff and the verification of it were discussed. (2) The proliferation of plutonium in the civil nuclear fuel cycle and the safeguards on it were studied. Particularly, the safeguards on the power reactors, the reprocessing plants and the plutonium-fuel fabrication plants were analysed. (3) The probability to produce the weapon-grade plutonium clandestinely in some countries were discussed, some possible ways to detect the clandestine production activities have been given. (4) Several disposal options of separated plutonium from a proliferation point of view were analysed