Parametric γ-radiation from electrons in Mössbauer crystal

Characteristics of the parametric γ-radiation (PGR) from relativistic electrons in Mössbauer crystals are analyzed in the framework of the kinematical diffraction theory taking into account the interference between electron and nuclear resonant parts of the crystal X-ray polarizability. Optimization of crystal parameters, electron energy and diffraction geometry is carried out in order to increase the brightness of the resonant γ-radiation source based on PGR. A possible experimental setup for observation of PGR is discussed