Mössbauer effect /ˈmɒsˌbaʊə, ˈmœsbauər/

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  N the phenomenon in which an atomic nucleus in a crystal of certain substances emits a gamma ray without any recoil to the atom. The study of the emitted gamma rays (Mössbauer spectroscopy) is used to determine the energy levels in a nucleus, the structure of molecules, etc 穆斯堡尔效应; 原子核放射出伽马射线而不反冲至原子的现象; 研究发出的伽马射线“穆斯堡尔谱仪”是用来测定核子、分子结构等中的能量等级 [physics]