Japan itself had a Level 4 accident in 1999, when three workers preparing fuel for a reactor at a Japan Nuclear Fuel Conversion plant triggered a nuclear chain reaction, called a criticality.
The first criticality experiment of 5mw Low Power Reactor (LPR) is described.
本文介绍5 MW低功率堆(5mw LPR)首次装料及首次临界试验。
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The geometric buckling is of great value in application to criticality problem and analysis of dynamic process of supercritical system in fast fission reactor.