Comparison of Gas Puff Imaging Data in NSTX with the DEGAS 2 Simulation

[摘要] Gas-Puff-Imaging (GPI) is a two dimensional diagnostic which measures the edge D?? light emission from a neutral D2 gas puff nears the outer mid-plane of NSTX. DEGAS 2 is a 3-D Monte Carlo code used to model neutral transport and atomic physics in tokamak plasmas. In this paper we compare measurements of the D?? light emission obtained by GPI on NSTX with DEGAS 2 simulations of D?? light emission for specific experiments. Both the simulated spatial distribution and absolute intensity of the D?? light emission agree well with the experimental data obtained between ELMs in H-mode.

[发布日期] 2012-10-27

[学科分类] 原子、分子光学和等离子物理