AP01000 Loss of Helium Ions Energy Emitted by Plasma Focus within Tungsten

Abstract

The research aims to study the loss of helium ions energy emitted by plasma focus within tungsten, which is one of the most widely used materials in the vacuum chamber of plasma focus devices and nuclear fusion reactors. First, the characteristics of the plasma focus formed when helium gas pressure changes were determined, and then the characteristics of the helium ion beam emitted by the NX2 dense plasma focus device were determined using Lee code. Then perform a simulation of helium ions interaction within a 1 µm thickness of tungsten at three values of helium ion energy 76, 131, and 204 keV, and determine penetration depth of ions, then use SRIM to determine ion energy loss values. The results showed the formation of bulges within the tungsten due to the assembly of helium ions due to loss their energy with the tungsten electronic cloud. ‏