The calculations show that thorium based fuel has similar behavior as uranium fuel has in PWRs.
计算结果表明,压水堆中钍燃料和铀燃料的中子特性相似。
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Then they started looking at that, and now we're talking into the late nineteen nineties, and they said well gee, maybe PWRs are also susceptible to this problem.
They did some research, they did some preliminary analysis and they basically had the BWR people fix certain things but they concluded that it was kind of okay for PWRs back at that time.