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Titolo:
SPATIAL DISTRIBUTIONS OF NEUTRAL ATOMS IN THE NEAR-TARGET PLASMA - THEORY AND EXPERIMENT
Autore:
NAUJOKS D; STEINBRINK J; WENZEL U;
Indirizzi:
EURATOM,MAX PLANCK INST PLASMAPHYS,BERLIN BRANCH,MOHRENSTR 40-41 D-10117 BERLIN GERMANY
Titolo Testata:
Journal of nuclear materials
, volume: 241, anno: 1997,
pagine: 707 - 711
SICI:
0022-3115(1997)241:<707:SDONAI>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Keywords:
SPATIAL NEUTRAL DISTRIBUTION; ANALYTICAL MODEL; PLASMA-WALL INTERACTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
D. Naujoks et al., "SPATIAL DISTRIBUTIONS OF NEUTRAL ATOMS IN THE NEAR-TARGET PLASMA - THEORY AND EXPERIMENT", Journal of nuclear materials, 241, 1997, pp. 707-711

Abstract

In this paper analytical expressions are given for the distributions of neutral impurity atoms in the plasma near the surface, which acts as the impurity source. The effects of the angular and energy distribution of the sputtered atoms, of the experiment geometry (plasma and surface size) and the plasma parameters are taken into account. Using theanalytical expressions and experimentally measured photon intensitiesof the neutral line emission, either the flux of eroded particles or the excitation rate coefficients can be determined experimentally, by knowing one of them. In the linear plasma generator PSI-1 such an experiment with Li, for which the excitation rate coefficients are available, has been performed. The measured flux of eroded Li atoms has been compared with erosion calculations taking into account both thermal sublimation and physical sputtering.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 08/04/20 alle ore 11:25:08