(of a particular reactor core, body of fissile material, bomb, etc.) the minimum characteristic dimensions or mass at which it becomes capable of…
| 单词 | θ79751 |
| 释义 | the world > matter > physics > atomic nucleus > nuclear fission > [noun] > minimum of fissile material (7) critical size1940 (of a particular reactor core, body of fissile material, bomb, etc.) the minimum characteristic dimensions or mass at which it becomes capable of… critical mass1941 Nuclear Physics. The minimum mass or size of fissile material required in a nuclear reactor, bomb, etc., to sustain a steady chain reaction. Cf. cri… crit1957 colloquial (originally U.S.). = critical mass, n. 1 or critical size n. at critical, adj. n.compounds. Subcategories:— state of (2) — deviation from (1) — supercritical state (1) |
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