电子跃迁引起的核激发和γ激光器

Nuclear Excitation by Electron Transition and Gamma-Ray Laser

电子跃迁可能通过交换虚光子引起核的激发(NEET)。本文讨论应用NEET将能量从外辐射场通过作为中间介质的原子传给原子核的可能性。首先给出了计算NEET几率的公式。重点讨论跃迁矩阵元和选择定则。计算了几个已有实验数据的核素的NEET几率。估算了NEET几率的上限值,它大约是10^(-5)。讨论了应用NEET于γ激光器的条件及可能性。

This paper studies nuclear excitation by electron transition (NEET) and is potential application in developing gamma-ray laser. A quantum mechanics formula to calculate NEET probabilities was presented with emphasis on the calculations of the transition matrix elements and discussions of the transition selection rules. The NEET probabilities for a number of nuclides were calculated. The upper limit of NEET probability is evaluated to be about 10^(-^5). The possibility for applying the technique of NEET in the development of gamma laser was investigated.