瞬发中子 meaning in Chinese

instantaneous neutron
prompt neutrons
promptly born neutron

The results show that the method is better than the method of counting prompt neutrons in distinguishing real and fake nuclear warheads
数值模拟表明，这种方法比计数瞬发中子总数有较大的优点，可用来探测铀为弹芯的核弹头。
In analyzing the neutron active detection , the neutron multiplication in the nuclear warheads induced by outer neutron source with different neutron energys is studied with numeral simulation , and the feasibility of through counting neutrons to determine the presence of high enrichment uranium ( heu ) in nuclear warhead has been proved . the method of detecting the warhead which contains heu pit by counting the released neut rons whose energy is higher than that of source neutron is studied . the feasibility of this method has been studied
对几种主动探测核弹头方法进行的研究中，首先对不同能量各向同性外源中子照射核弹头的中子增殖行为进行了数值模拟，检验了用外源中子照射核弹头后，通过测量瞬发中子在核弹头中的增殖量，来证明核弹头中高浓铀存在的可行性；研究了用能量低于1mev的外中子源照射核弹头，用测量核弹头中裂变产生的高于源中子能量中子数的方法探测核弹头，通过数值模拟分析了可行性。