Numerical Analysis Of Helicon Plasma Power Deposition On Helicon Physics Prototype Experiment

Recently helicon plasma sources are of particular interest for plasma material interaction under fusion conditions. This paper is devoted to study the effect of the antenna type, operating frequency and static magnetic field intensity on power absorption in Helicon Physics Prototype eXperiment(HPPX). The results show that Half Helix antenna can generate non-axisymmetric RF energy which can produces higher electron density. When the antenna work frequency is 13.56MHz, helicon plasma can produce better absorption effect. The external constrained static magnetic field is introduced into the plasma, there exist multiple local peaks for certain magnetic field strength, and the absorption effect increases with magnetic field strength overall. This work can serve as an important reference for the related physical experiments of HPPX device in the future.