＞＞ＥＶＡ第０７话发布附属超级资料先发＞＞核动力知识大全

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最初由 oldgoat 发布


啊，对不起，是我记错了，天然铀含0．725%的U235。前面说的关于这方面的东西是我胡说八道。

PS：你给的链接我今天才看，以前忽视了，对不起。不过它不是美国国家实验室的科学家写的，而是一个15岁的中学生。此外不知道这段“Since Uranium is a very heavy element, heavier than lead, it is also used in artillery shells. The army would put U238 in the front of a shell and shoot the shell out of a tank or airplane, at the enemy tank. The uranium in this case has been processed so as to not have very much at all of U235 left in it, hopefully pure U238. So then the shell would not be radioactive. There is some controversy as to whether they do a good job of this, and there are concerns that these shells spread radioactive uranium (U235) around.”你怎么看，尤其是那句“The uranium in this case has been processed so as to not have very much at all of U235 left in it, hopefully pure U238. So then the shell would not be radioactive”？贫铀是U238与是否直接从天然铀中获得还是从核废料中获得没有直接关系。U238不参与链式反应，核燃料只是稍微提高U235的质量百分比，核废料中自然仍然存在U238。

PPS：刚才才看到，用液态金属钠作工作循环液体，的确是很危险的，那种东西腐蚀性太强，现在应该没人用了。

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最初由 huaiqie 发布

超过临界值反应堆堆芯会融化，引发爆炸造成核污染，但不是核爆。
EVA到底提到是哪种类型的爆炸，今天回家必须回顾一下。

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最初由 aaabbbccc 发布

u dont need to go through reactor to get U238, because after fision there's a lot other byproduct which cound be very dangerous. u just need purify the U238 after u made ur weapon grade U235.

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最初由 wolfsoft 发布


一般核潜艇最高也就60%左右,我还没听说再高的,任何船只的都没有.
核电站的一般只有5%-25%,够低啊...