Title :
Calculation of the Tangential View of an H-Alpha Intensity Profile in the Large Helical Device
Author_Institution :
Dept. of Helical Plasma Res., Nat. Inst. for Fusion Sci., Toki, Japan
Abstract :
A tangential image of an H-alpha intensity profile in a large helical device (LHD) plasma is investigated by a neutral particle transport simulation using a detailed 3-D grid model including the geometry of the helical plasma and the vacuum vessel. The calculated image of the H-alpha intensity profile calculated by the simulation quite agrees with the observed image, which strongly suggests that there is no significant abnormal neutral particle sources in typical plasma discharge operation in LHD.
Keywords :
discharges (electric); magnetic traps; plasma devices; plasma simulation; plasma transport processes; H-alpha intensity profile; abnormal neutral particle sources; detailed 3D grid model; helical plasma geometry; large helical device plasma; neutral particle transport simulation; plasma discharge; tangential image; vacuum vessel; Cameras; Coils; Magnetic resonance imaging; Plasmas; Solid modeling; Superconducting magnets; Toroidal magnetic fields; Cameras; Monte Carlo methods; charge coupled devices; plasmas; simulation;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2160550
