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出典:Wiktionary
neutron emission (countable かつ uncountable, 複数形 neutron emissions)
出典:Wikipedia
出典:『Wikipedia』 (2011/04/15 02:19 UTC 版)
Neutron emission is a type of radioactive decay of atoms containing excess neutrons, in which a neutron is simply ejected from the nucleus. Two examples of isotopes which emit neutrons are helium-5 and beryllium-13. However, the decay of helium-5 is also (by definition) a case of alpha-decay.
Neutron emission