Status and issues in the development of a gamma-ray laser (Invited Paper)

摘要

Abstract: A gamma-ray laser would stimulate the emission of radiation at wavelengths below 1 angstrom from excited states of nuclei. However, the difficulties in realizing such a device were considered insurmountable when the problem was last reviewed in 1981. Nevertheless, research on the feasibility of a gamma-ray laser has taken a completely new character since then. A nuclear analog of the ruby laser has been proposed and many of the component steps for pumping the nuclei have been demonstrated experimentally. A quantitative model based upon the new data and concepts of this decade shows the gamma-ray laser to be feasible if some real isotope has its properties sufficiently close to the ideals modeled.!36