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Title: Measurements of Wall Recycling Coefficient in the HANBIT Mirror Device

Abstract

Wall recycling and results of ICRH discharge in the HANBIT mirror device are presented. The amount of gas loading due to recycling from the wall and recycling coefficient are estimated quantitatively by the time evolution of the pressures in each region of the HANBIT mirror device during plasma discharges. These measured pressures are compared with a model calculation made in terms of a coupled set of rate equations. Also we introduce a gas recycling model based on atomic and molecular processes. In this model, enhancement of fueling due to the recycling is evaluated on the basis of the calculated probabilities of neutral and ion production by using the rate coefficients of these reactions.

Authors:
; ; ;  [1]
  1. Korea Basic Science Institute (Korea, Republic of)
Publication Date:
OSTI Identifier:
20849855
Resource Type:
Journal Article
Journal Name:
Fusion Science and Technology
Additional Journal Information:
Journal Volume: 47; Journal Issue: 1T; Other Information: Copyright (c) 2006 American Nuclear Society (ANS), United States, All rights reserved. http://epubs.ans.org/; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1536-1055
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ELECTRIC DISCHARGES; ICR HEATING; IONS; MAGNETIC MIRRORS; PLASMA; PLASMA DIAGNOSTICS; PROBABILITY; RECYCLING

Citation Formats

Seo, D C, Na, H K, Yoon, J S, and Yoon, S W. Measurements of Wall Recycling Coefficient in the HANBIT Mirror Device. United States: N. p., 2005. Web.
Seo, D C, Na, H K, Yoon, J S, & Yoon, S W. Measurements of Wall Recycling Coefficient in the HANBIT Mirror Device. United States.
Seo, D C, Na, H K, Yoon, J S, and Yoon, S W. 2005. "Measurements of Wall Recycling Coefficient in the HANBIT Mirror Device". United States.
@article{osti_20849855,
title = {Measurements of Wall Recycling Coefficient in the HANBIT Mirror Device},
author = {Seo, D C and Na, H K and Yoon, J S and Yoon, S W},
abstractNote = {Wall recycling and results of ICRH discharge in the HANBIT mirror device are presented. The amount of gas loading due to recycling from the wall and recycling coefficient are estimated quantitatively by the time evolution of the pressures in each region of the HANBIT mirror device during plasma discharges. These measured pressures are compared with a model calculation made in terms of a coupled set of rate equations. Also we introduce a gas recycling model based on atomic and molecular processes. In this model, enhancement of fueling due to the recycling is evaluated on the basis of the calculated probabilities of neutral and ion production by using the rate coefficients of these reactions.},
doi = {},
url = {https://www.osti.gov/biblio/20849855}, journal = {Fusion Science and Technology},
issn = {1536-1055},
number = 1T,
volume = 47,
place = {United States},
year = {Sat Jan 15 00:00:00 EST 2005},
month = {Sat Jan 15 00:00:00 EST 2005}
}