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000136118 041__ $$aGerman
000136118 084_0 $$2ZB$$aPGN - Fusion technology, plasma devices
000136118 0881_ $$aJuel-3036
000136118 088__ $$2JUEL$$aJuel-3036
000136118 1001_ $$0P:(DE-Juel1)6784$$aUnterberg, Bernhard$$b0$$eCorresponding author
000136118 245__ $$aStrahlungskühlung durch Verunreinigungen in der Plasmarandschicht des Tokamaks TEXTOR - vergleichende Untersuchungen zur Injektion von Neon und Silizium$$h[E-Book]
000136118 260__ $$aJülich$$bForschungszentrum$$c1995
000136118 300__ $$a120 S.
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000136118 4900_ $$0PERI:(DE-600)2414853-2$$aBerichte des Forschungszentrums Jülich$$v3036
000136118 500__ $$aRecord converted from JUWEL: 18.07.2013
000136118 520__ $$aThe concept of a cold radiating plasma mantle might help to solve the problem of energy exhaust in a fusion reactor. Line radiation of impurities localized at the boundary of the bulk plasma could distribute the heating power onto the whole vessel wall and avoid dangerous heat loads at the plasma facing components as limiters or divertor plates. Important requirements have to be fulfilled within such a concept: on the one hand a stationary impurity concentration at the edge on a high level, sufficient to radiate a substantial fraction of the heating power and to reduce the plasma temperature at the boundary and the convective heat flow to the limiters or divertor plates, but on the other hand a limitation of the central impurity concentration to values compatible with ignition in a fusion reactor at the same time. First experiments at the tokamak TEXTOR with neon as the radiating impurity gave evidence for the feasibility of this concept. Within this work further experiments with neon and a comparison with silicon as the radiating impurity have been performed. The results are discussed with the help of model calculations to judge these two elements with respect to their suitability for radiation cooling by characterizing the mechanisms of their plasma wall interaction and the properties of radiation and transport
000136118 540__ $$aNeither this book nor any part of it may be reproduced or transmitted in any form or by any  means, electronic or mechanical, including photocopying, microfilming, and recording, or by any information storage and retrieval  system, without permission in writing from the publisher.
000136118 650_4 $$aradiation
000136118 650_4 $$acooling
000136118 650_4 $$aimpurity
000136118 650_4 $$aplasma sheath
000136118 650_4 $$aTextor Tokamak
000136118 650_4 $$ainjection
000136118 650_4 $$aneon
000136118 650_4 $$asilicon
000136118 7102_ $$aInstitut für Plasmaphysik (Jülich)
000136118 7102_ $$aAssociation EURATOM - Forschungszentrum Jülich
000136118 7102_ $$aUniversität (Bochum)
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