000136163 001__ 136163
000136163 005__ 20240711113921.0
000136163 0247_ $$2sirsi$$a(Sirsi) a268071
000136163 0247_ $$2ISSN$$a0944-2952
000136163 0247_ $$2Handle$$a2128/3653
000136163 037__ $$aPreJuSER-136163
000136163 041__ $$aGerman
000136163 084_0 $$2ZB$$aPGH - Plasma diagnostics
000136163 0881_ $$aJuel-3375
000136163 088__ $$2JUEL$$aJuel-3375
000136163 1001_ $$0P:(DE-Juel1)156333$$aBusche, Erik$$b0$$eCorresponding author$$ufzj
000136163 245__ $$aLadungsaustausch-Spektroskopie an der Balmer-$\alpha$-Linie an TEXTOR$$h[E-Book]
000136163 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag$$c1997
000136163 300__ $$a86 S.
000136163 3367_ $$0PUB:(DE-HGF)29$$2PUB:(DE-HGF)$$aReport$$mreport
000136163 3367_ $$2DataCite$$aOutput Types/Report
000136163 3367_ $$2BibTeX$$aTECHREPORT
000136163 3367_ $$2ORCID$$aREPORT
000136163 3367_ $$010$$2EndNote$$aReport
000136163 3367_ $$2DRIVER$$areport
000136163 4900_ $$0PERI:(DE-600)2414853-2$$aBerichte des Forschungszentrums Jülich$$v3375
000136163 502__ $$aZugl.: Essen, Univ., Diss., 1997
000136163 500__ $$aRecord converted from JUWEL: 18.07.2013
000136163 520__ $$aThe quantitative measurement of ion temperatures is of great relevance for the interpretation of experiments related to controlled fusion research. The diagnostics, which have been developed for this purpose, are often indirect and have to be checked for consistency. For spectrocopic diagnostics this concerns in particular the comparison between measurements on impurities with those on the Hydrogen isotopes. Charge exchange recombination spectroscopy (CXRS) is a diagnostic, which allows the determination of radial resolved ion temperatures. The analysis of the H- or D-spectra are problematic because of several effects. For this reason, normally spectra of light impurities are used for CXRS. In this report the charge exchange spectrum of Hand D is analysed and the results are compared to other independent measurements. The two effects, which are the most important for complicating the analysis, are the dependence of the effective emission coefficient on the collision energy and the halo effect. Both have been simulated numerically. In the case of the O"cx(Ered-dependence it is shown, that for the parameter range of TEXTOR the resulting spectrum can be approximated with a gaussian. For the calculation of ion temperatures and toroidal velocities correction values have been introduced with the species distribution of the neutral beam particles taken into account. A numerical transport model has been developed for the halo effect. With this the density and temperature distribution of the neutral H or D particles surrounding the neutral beam was calculated and the resulting spectra were simulated. The conclusionis that the halo has a large influenceon the locality of the measurement and contributes significantly to the measured photon flux, but that the influence on the measured temperature profile is larger than other typical experimental errors only at the plasma edge. Under different plasma conditions Da-spectra have been measured and analysed. A general trend is a central ion temperature, which lies above the electron temperature for neutral beam heated discharges. The shape of the radial profiles did not depart significantly from the Te-profiles. The impurity ion temperatures, which have been evaluated from CXRS spectra of CVI and Nex, were higher than the D temperatures in the case of higher temperatures and lower densities. For lower temperatures and higher densities, as eg in the case of radiative I-mode discharges, the temperatures agreed within the typical error bars
000136163 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.
000136163 653__ $$acharge exchange recombination spectroscopy
000136163 653__ $$aspectroscopic diagnostics
000136163 653__ $$aion temperature
000136163 650_4 $$aplasma diagnostics
000136163 650_4 $$aspectroscopy
000136163 650_4 $$aTextor Tokamak
000136163 8564_ $$uhttps://juser.fz-juelich.de/record/136163/files/Juel_3375_Busche.pdf$$yOpenAccess
000136163 909CO $$ooai:juser.fz-juelich.de:136163$$pdnbdelivery$$pVDB$$pdriver$$popen_access$$popenaire
000136163 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000136163 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)156333$$aForschungszentrum Jülich GmbH$$b0$$kFZJ
000136163 9201_ $$0I:(DE-Juel1)VDB812$$kIEF-4$$lPlasmaphysik$$x0
000136163 970__ $$a2128/3653
000136163 9801_ $$aFullTexts
000136163 980__ $$aI:(DE-Juel1)IEK-4-20101013
000136163 980__ $$aUNRESTRICTED
000136163 980__ $$aJUWEL
000136163 980__ $$aConvertedRecord
000136163 980__ $$aVDB
000136163 980__ $$areport
000136163 980__ $$aFullTexts
000136163 981__ $$aI:(DE-Juel1)IFN-1-20101013
000136163 981__ $$aI:(DE-Juel1)IEK-4-20101013