On the Coulomb excitation of even-even nuclei in the tens of keV region for possible #gamma#-lasing using free-electron channeling of powerful laser beams

摘要

It is suggested to use excitation of 2' + in the multiply rotation band of even-even nuclei for hard coherent Xor soft &-rays generation. The acgive medium can be created by the self-channeling of powerful laser pulses in a gas of light atoms (H, He, Li,...) placed inside a metal tube of &-lasing nuclei atoms. After removing free electrons from the channel, light ions acquire energies up to several MeV, penetrate to the metal tube and excite metallic nuclei by the well-known mechanism of Coulomb collisions. Estimations for the nucleus ~(140)Ce show values of &-rays increment & of up to several units per cm.