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On the Pattern, Motivation and Prospects of China-US nonproliferation Cooperation

Contemporary International Relations 2018年第1期28卷 79-102页

作者： Guo Xiaobing Institute of Arms Control and Security Studies China Institutes of Contemporary International Relations

nonproliferation cooperation has always been a bright spot in China-US security cooperation for over more than a decade. China and the U.S. should timely adjust the focus of their nonproliferation cooperation on a more equal basis, expanding common interests and exploring new patterns for cooperation so as to create a model for the two countries to join hands in global governance and maintenance of regional order.

关键词： nonproliferation nuclear security export control China-US cooperation pattern

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Modular next generation fast-neutron detector for portal monitoring

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Nuclear Science and Techniques 2022年第1期33卷 140-148页

作者： E.Aboud S.Ahn G.V.Rogachev V.E.Johnson J.Bishop G.Christian E.Koshchiy C.E.Parker D.P.Scriven Cyclotron Institute Texas A&M UniversityCollege StationTX 77843USA Department of Physics and Astronomy Texas A&M UniversityCollege StationTX 77843USA Department of Statistics Texas A&M UniversityCollege StationTX 77843USA

Nuclear nonproliferation is of critical importance for global *** fissile materials including highly enriched uranium and weapons-grade plutonium are especially important to *** interrogation techniques may result in much better sensitivity but are difficult with conventional portal monitors that rely on detecting thermal ***,most conventional portal monitoring systems rely on ^(3)He,which has a finite and continually decreasing *** designing a highly segmented array of organic scintillators,we posit that we can accurately and quickly identify fissile materials,including weapons-grade plutonium and highly enriched uranium,being *** propose a new design for a fast-neutron detector that overcomes the limitations of the current generation of portal ***6 simulations have been performed in conjunction with the UMPBT statistical model to determine the sensitivity limitations of the proposed *** suggest that the proposed detector may be 10 times more efficient than current-generation thermal neutron detectors and may be able to positively identify a 81 mg 235U source in as little as 192 seconds utilizing active interrogation techniques.

关键词： Fast-neutron detection Portal monitoring nonproliferation

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