Abstract
ABSTRACT In the present work a theoretical model of plasma absorption and emission is developed and applied to explanation ofsome experimentally observed spectra from laser-produced plasmas under conditions being of interest for the ICF aswell. The targets for ICF contain the layers of various materials: Be, Al, Cu, Si02, agar (C12H18O9), and others. Of in-terest is the code, calculating the optical characteristics of plasma of a complicated chemical composition in a broadrange of plasma conditions (density and temperature). This spectroscopic modelling has been performed by a colli-sional-radiative model DESNA for non-LTE mixtures involving detailed structure of excited levels of all charge statesfrom a neutral atom to a fully ionized ion. In the paper we present some new results of theoretical investigation of x-rayemission in the conditions close to real experiments on interaction of short and powerful laser pulses with targets. Thesimulation and available experimental results are in good enough agreement for various target materials (C, Al, Cu).Keywords: Opacity, emissivity, collisional-radiative model, short laser pulses, non-LTE spectra
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
