Nonequilibrium nonideal nanoplasma generated by a fast single ion in condensed matter

固体中に注入された高速単一イオンによって生成される非平衡非理想ナノプラズマ

Faenov, A. Ya.; Lankin, A. V.*; Morozov, I. V.*; Norman, G. E.*; Pikuz, S. A. Jr.*; Skobelev, I. Yu.*

Faenov, A. Ya.; Lankin, A. V.*; Morozov, I. V.*; Norman, G. E.*; Pikuz, S. A. Jr.*; Skobelev, I. Yu.*

A plasma model of relaxation of a medium in heavy ion tracks in condensed matter is proposed. The model is based on three assumptions: the Maxwell distribution of plasma electrons, localization of plasma inside the track nanochannel and constant values of the plasma electron density and temperature during the X-ray irradiation. It is demonstrated that the plasma relaxation model adequately describes the X-ray spectra observed upon interaction of a fast ion with condensed target. Assumptions of plasma relaxation model are validated by the molecular dynamics modeling and simulation.