原子核高K同质异能态的诱发γ辐射
Induced γ radiation of High K Isomer States of Nuclei
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摘要: 介绍了原子核高K同质异能态潜在的应用价值及国内外研究的进展。 总结了形成同质异能态的3种主要物理机制。 说明了高K同质异能态的应用原理是将其激发到更高的不稳定的K混合态上， 再发生诱发退激， 形成γ瀑， 释放其存储的能量。 同时又介绍了K混合态的3种主要产生机制。 最后分析了178Hfm2诱发退变的实验， 讨论了这些实验的区别和与角动量投影壳模型计算结果的差异。
The nuclear isomer states have great potential value of application. The important experimental and theoretical researches are presented here. There are three kinds of physics mechanism for the formation of the isomer states. The principle of releasing the energy stored in the isomer is to excite it to higher states, Kmixing states, which can spontaneously decay to the ground state forming the γcascade. After introducting the three ways to form the Kmixing states, we analyzed experiments on the most prospective isomer 178Hfm2, discussed the key differences between these experiments and suggested that the Projected Shell Model (PSM) can be helpful to confirm the occurrence of the Kmixing states and would work out characteristics of the induced decay.Abstract: The nuclear isomer states have great potential value of application. The important experimental and theoretical researches are presented here. There are three kinds of physics mechanism for the formation of the isomer states. The principle of releasing the energy stored in the isomer is to excite it to higher states, Kmixing states, which can spontaneously decay to the ground state forming the γcascade. After introducting the three ways to form the Kmixing states, we analyzed experiments on the most prospective isomer 178Hfm2, discussed the key differences between these experiments and suggested that the Projected Shell Model (PSM) can be helpful to confirm the occurrence of the Kmixing states and would work out characteristics of the induced decay.
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