Study of the parametric variation for argon glow discharge conditioning of SS304

SS304 is the most commonly used vacuum vessel material for fusion devices and accelerators. Carbon in SS is the main impurity of concern for these applications. Glow Discharge Conditioning (GDC) is used to remove this impurity in the form of volatile gas production which can be monitored using a Qua...

Full description

Saved in:
Bibliographic Details
Published in:Vacuum 1994, Vol.45 (1), p.41-44
Main Authors: Anjali, S, Gogawale, SV, Ramanathan, D
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Installations for energy generation and conversion: thermal and electrical energy
Materials
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:SS304 is the most commonly used vacuum vessel material for fusion devices and accelerators. Carbon in SS is the main impurity of concern for these applications. Glow Discharge Conditioning (GDC) is used to remove this impurity in the form of volatile gas production which can be monitored using a Quadrupole Mass Spectrometer (QMS). In this paper variations in the important experimental parameters like discharge pressure, current density, wall temperature and surface pretreatment and their effects on the efficiency of Ar GDC has been discussed. This has been studied with the help of two parameters, desorption yield and total throughput of carbon removed. The efficiency increased with decrease in discharge pressure, increase in current density and increase in wall temperature. The extent of impurity removal was minimal for a polished and baked surface.
ISSN:0042-207X
1879-2715
DOI:10.1016/0042-207X(94)90338-7