NEUTRAL TRANSPORT IN A GAS-TARGET DIVERTOR - EXPERIMENTAL SIMULATION IN PISCES-A AND DEGAS MODELING RESULTS

被引：10

作者：

GROSSMAN, A ^{[1
]}

SCHMITZ, L ^{[1
]}

MERRIMAN, B ^{[1
]}

LEHMER, R ^{[1
]}

NAJMABADI, F ^{[1
]}

STOTLER, DP ^{[1
]}

机构：

[1] PRINCETON PLASMA PHYS LAB, PRINCETON, NJ 08543 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 1995年 / 220卷

关键词：

D O I：

10.1016/0022-3115(94)00427-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The DEGAS Monte Carlo neutral transport code is applied to gas target divertor simulation experiments in the PISCES-A linear plasma device to study the neutral gas dynamics in a well diagnosed environment. The experimental geometry is accurately represented by a novel use of the toroidal symmetry option. Axial and radial density and electron temperature profiles, experimentally determined from Langmuir probe data are used as plasma input data for the code. It is found that the molecular and atomic hydrogen density profiles obtained from DEGAS agree well with the experimentally determined neutral densities, The electron energy balance from DEGAS indicates electron power losses by ionization, radiation and dissociation in excess of 95% of the input power for the highest gas puffing rates (S-gas less than or equal to 3 Torr 1/s), in agreement with experimental observations.

引用

页码：274 / 278

页数：5

共 10 条

[1] PLASMA SURFACE INTERACTION EXPERIMENTAL FACILITY (PISCES) FOR MATERIALS AND EDGE PHYSICS STUDIES [J].