…Fermi also discovered that nuclear reactions are highly likely to occur when the energy of the neutrons is approximately equal to a discrete value. This phenomenon is called resonance, and the reason for this is that at these energies, the incident neutron and the target atomic nucleus combine during the reaction to form a metastable, complex compound nucleus. The concept of compound nuclei was proposed by NHD Bohr in 1936 and is one of the important pillars of nuclear reaction theory. … *Some of the terminology that refers to the "resonance phenomenon" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…フェルミはまた,中性子のエネルギーがとびとびのある値にほぼ等しいときには,核反応がきわめて起こりやすいことを見いだした。この現象は共鳴現象と呼ばれているが,共鳴現象が起こる理由は,これらのエネルギーでは,入射中性子と標的である原子核とが反応の途中で一体になって,準安定で複雑な複合核を形成することにある。この複合核の概念はN.H.D.ボーアによって36年に提唱されたもので,核反応理論の重要な柱の一つとなっている。… ※「共鳴現象」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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