Simulation of Radiative Properties of Substances Used as Soft X-Ray Source Materials for an X Pinch

摘要

This article presents the results of theoretical and experimental studies of the radiative properties of materials that can serve as sources of soft X-ray radiation in an X pinch. The important features of the theoretical model used to compute the radiation characteristics of the plasma with a complex chemical compound are discussed. It is shown that the yield of X-ray radiation can be increased by changing the chemical composition of the radiation source material. Theoretical results are compared with the data from experiments on measuring the total yield of X-pinch radiation where two types of wires are used: from NiCr and from Alloy 188, respectively. The physical processes in the symmetrical multilayer X pinch with the use of wires of tungsten and molybdenum are analyzed. A possible theoretical explanation of the physical effects observed in the experiment is discussed on the basis of the radiation spectra and of the W and Mo absorption and of their Rosseland and Planck paths.