Nuclear Excitation by Electron Transition and γ-Ray Laser

Huo Yukun; Zhang Baohui; Yuan Zhushu

Chinese Physics C> 1992, Vol. 16> Issue(S3) : 321-328

Nuclear Excitation by Electron Transition and γ-Ray Laser

Department of Physics II. Fudan University. Shanghai. China

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Electron transition may induce nuclear excitation through virtual photon exchange (NEET). This paper discusses the possibility of transferring energies/from irradiation fields to nuclei by the NEET via atoms, the intermediate medium. A fonnula to calculate the NEET probabilities is presented, and the emphasis is put on the discussion of the transition matrix elements and selection rules. The predicted NEET probabilities for several nuclei are given and compared with the data. The upper limits of the NEET probabilities are estimated to be about lO^-5. The conditions and possibilities to apply NEET to the γ-ray laser are discussed.

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Huo Yukun, Zhang Baohui and Yuan Zhushu. Nuclear Excitation by Electron Transition and γ-Ray Laser[J]. Chinese Physics C, 1992, 16(S3): 321-328.

Huo Yukun, Zhang Baohui and Yuan Zhushu. Nuclear Excitation by Electron Transition and γ-Ray Laser[J]. Chinese Physics C, 1992, 16(S3): 321-328. shu

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Received: 1991-05-22

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Supported by the Shanghai Municipal Science Foundation, the Natural Science Foundation of Fudan University, and the National Natural Science Foundation of China.

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沈阳化工大学材料科学与工程学院沈阳 110142

Nuclear Excitation by Electron Transition and γ-Ray Laser

Department of Physics II. Fudan University. Shanghai. China

Received Date: 1991-05-22

Fund Project: Supported by the Shanghai Municipal Science Foundation, the Natural Science Foundation of Fudan University, and the National Natural Science Foundation of China.

Abstract: Electron transition may induce nuclear excitation through virtual photon exchange (NEET). This paper discusses the possibility of transferring energies/from irradiation fields to nuclei by the NEET via atoms, the intermediate medium. A fonnula to calculate the NEET probabilities is presented, and the emphasis is put on the discussion of the transition matrix elements and selection rules. The predicted NEET probabilities for several nuclei are given and compared with the data. The upper limits of the NEET probabilities are estimated to be about lO^-5. The conditions and possibilities to apply NEET to the γ-ray laser are discussed.