Change the tungsten surface when irradiated by plasma beam

Abstract

In article show results of research interaction of plasma with a tungsten surface are presented to to a plasma beam installation. Changes of structure of tungsten as a result of radiation are experimentally studied by hydrogen plasma. The electron microscopic analysis showed that at radiation change of a relief of a surface happens hydrogen plasma of tungsten and on a surface the erosion which is formed due to dispersion, caused by ionic bombing is observed. It is revealed that as a result of tungsten radiation stationary plasma in a body of grain forms etching poles. In addition, in volume of tungsten micropores are created. Researches of tungsten after radiation by plasma with various accelerating potential showed that the greatest damages of a surface are found at great values of the accelerating potential.