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Cross-field diffusion quenching by neutral gas injection in a magnetized plasma

Abstract

Cross-field transport of test ions is investigated in a linear Q-machine plasma. Test particles are created and followed in their motion by an optical tagging diagnostic scheme. Direct information on ion diffusivity is obtained from a comparison between the actual tag signal and a simple theoretical simulation. Diffusion is demonstrated to be supported by classical mechanisms. When different noble buffer gases are injected, the plasma reacts in such a way that the diffusivity remains classical but its magnitude is considerably reduced. (author) 9 figs., 15 refs.
Authors:
Fasoli, A; Skiff, F; Good, T N; Paris, P J [1] 
  1. Ecole Polytechnique Federale, Lausanne (Switzerland). Centre de Recherche en Physique des Plasma (CRPP)
Publication Date:
Dec 01, 1991
Product Type:
Technical Report
Report Number:
LRP-444/91
Reference Number:
SCA: 700330; PA: AIX-23:038010; SN: 92000726702
Resource Relation:
Other Information: PBD: Dec 1991
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; PLASMA; DIFFUSION; NEUTRAL ATOM BEAM INJECTION; COMPUTERIZED SIMULATION; EXPERIMENTAL DATA; IONS; MAGNETISM; PLASMA DIAGNOSTICS; QUENCHING; RARE GASES; THEORETICAL DATA; 700330; PLASMA KINETICS, TRANSPORT, AND IMPURITIES
OSTI ID:
10140119
Research Organizations:
Ecole Polytechnique Federale, Lausanne (Switzerland). Centre de Recherche en Physique des Plasma (CRPP)
Country of Origin:
Switzerland
Language:
English
Other Identifying Numbers:
Other: ON: DE92627449; TRN: CH9200221038010
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
CHN
Size:
18 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Fasoli, A, Skiff, F, Good, T N, and Paris, P J. Cross-field diffusion quenching by neutral gas injection in a magnetized plasma. Switzerland: N. p., 1991. Web.
Fasoli, A, Skiff, F, Good, T N, & Paris, P J. Cross-field diffusion quenching by neutral gas injection in a magnetized plasma. Switzerland.
Fasoli, A, Skiff, F, Good, T N, and Paris, P J. 1991. "Cross-field diffusion quenching by neutral gas injection in a magnetized plasma." Switzerland.
@misc{etde_10140119,
title = {Cross-field diffusion quenching by neutral gas injection in a magnetized plasma}
author = {Fasoli, A, Skiff, F, Good, T N, and Paris, P J}
abstractNote = {Cross-field transport of test ions is investigated in a linear Q-machine plasma. Test particles are created and followed in their motion by an optical tagging diagnostic scheme. Direct information on ion diffusivity is obtained from a comparison between the actual tag signal and a simple theoretical simulation. Diffusion is demonstrated to be supported by classical mechanisms. When different noble buffer gases are injected, the plasma reacts in such a way that the diffusivity remains classical but its magnitude is considerably reduced. (author) 9 figs., 15 refs.}
place = {Switzerland}
year = {1991}
month = {Dec}
}