Zobrazeno 1 - 10
of 54
pro vyhledávání: '"H.A. Claassen"'
Autor:
H.A. Claassen, Juergen Rapp, P. Franz, B. Schweer, G. Telesca, U. Samm, G. Van Oost, J. Ongena, M. Z. Tokar, N. Schoon, B. Unterberg, A.M. Messiaen
Publikováno v:
Journal of Nuclear Materials. :853-856
When neon is injected into a tokamak plasma with the aim of reducing the peak heat flow into the SOL by enhanced edge radiation, both Prad and Zeff increase. The ratio of the incremental Prad to the incremental Zeff, ΔPradΔZeff, can change on TEXTO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b14c49c0cd30f42f61a8ea5ff0030bb3
https://doi.org/10.1016/s0022-3115(97)80153-5
https://doi.org/10.1016/s0022-3115(97)80153-5
Autor:
R.P. Schorn, J. Winter, L. Könen, G. Van Oost, R. Koch, R.R. Weynants, H.A. Claassen, G. Esser, Y T Lie, B. Schweer, A. M. Messiaen, D. Rusbüldt, A. Pospieszczyk, John D. Hey, G. Van Wassenhove, P. Bogen, Giuseppe Telesca, E. Hintz, H. Gerhauser, M. Z. Tokar, F. Durodié, G. Bertschinger, U. Samm, R. E. Vanderplas, J. Ongena, R. Van Nieuwenhove
Publikováno v:
Scopus-Elsevier
Controlled application of radiating impurities in the boundary layer can help to solve the problem of power exhaust in a fusion reactor. Experiments in the Torus Experiment for Technological Oriented Research (TEXTOR) [J. Nucl. Mater. 145–147, 3 (1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9823fa69d87dc7266f3dd78adfd29f9c
https://doi.org/10.1063/1.871488
https://doi.org/10.1063/1.871488
Publikováno v:
Nuclear Fusion. 34:625-639
The impurity content of the plasma during the steady state phase of ICRF minority heating in TEXTOR is found to be, for boronized wall conditions, a function of the thermal load on the limiter only. This new experimental result, which is to be relate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::633c083f041fbe6fa81aaee03f0bd5b1
https://doi.org/10.1088/0029-5515/34/5/i11
https://doi.org/10.1088/0029-5515/34/5/i11
Autor:
B. Schweer, Y.T. Lie, P. Bogen, E. Hintz, D. Bora, D. Rusbüldt, U. Samm, H. Gerhauser, R.S. Ivanov, H. Hartwig, A. Pospieszczyk, H.A. Claassen, K. Höthker
Publikováno v:
Nuclear Fusion. 31:1386-1389
The transport inside the scrape-off layer (SOL) of a tokamak is analysed. In particular, poloidal asymmetries in electron density profiles measured in the presence of a toroidal limiter are compared with results obtained from a numerical twodimension
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8eb6339e8ba5e8e3397647d14ca12ea3
https://doi.org/10.1088/0029-5515/31/7/014
https://doi.org/10.1088/0029-5515/31/7/014
Publikováno v:
Journal of Nuclear Materials. :398-403
First results of the application of lithium-beam activated charge exchange spectroscopy (Li-CXS) to a tokamak edge plasma are reported. Radial density profiles of several highly ionized states of carbon (C4+ to C6+) have been measured in the outmost
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15d5445d22d8ad99d7366a77d13c5444
https://doi.org/10.1016/0022-3115(90)90079-3
https://doi.org/10.1016/0022-3115(90)90079-3
Autor:
E. Hintz, B. Schweer, A. Pospieszczyk, H. Hartwig, U. Samm, H.A. Claassen, Y.T. Lie, H. Gerhauser, P. Bogen, D. Rusbüldt
Publikováno v:
Journal of Nuclear Materials. :273-277
The influence of radiation losses on plasma edge parameters in the TEXTOR tokamak has been investigated. It is shown that the radiation can be expressed in terms of impurity fluxes rather than in terms of impurity densities by introducing a new param
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94337c847ceef1fea40a54255ec0ad4e
https://doi.org/10.1016/0022-3115(90)90059-v
https://doi.org/10.1016/0022-3115(90)90059-v
Autor:
H. Gerhauser, H.A. Claassen
Publikováno v:
Contributions to Plasma Physics. 30:89-94
The calculations with the 2D boundary layer code SOLXY originally restricted to tokamaks with a poloidal limiter have now been modified to describe also the plasma edge of a toroidal belt limiter like the ALT-II of TEXTOR. We have selfconsistently in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c9d6d3f06e95bde3f15a5c4e5e2e31a
https://doi.org/10.1002/ctpp.2150300116
https://doi.org/10.1002/ctpp.2150300116
Autor:
L. Könen, B. Unterberg, H.A. Claassen, G. Bertschinger, G. Van Oost, M. Z. Tokar, Juergen Rapp, G. Telesca, M. Brix, A. Pospieszczyk, Rje Roger Jaspers, U. Samm, A. Krämer-Flecken, Tetsuo Tanabe, H. R. Koslowski, Kaoru Ohya, V. Philipps
Publikováno v:
Plasma Physics and Controlled Fusion, 39, 1615-1634
High-Z materials as tungsten are intended to be used in future fusion reactors due to their low sputtering rates and high melting points. In this context the important question is whether the use of high-Z materials is compatible with the concept of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d16be18668c0824439afb5ba9499367c
https://doi.org/10.1088/0741-3335/39/10/009
https://doi.org/10.1088/0741-3335/39/10/009
Autor:
H.A. Claassen, H. Repp
Publikováno v:
Nuclear Fusion. 21:589-601
Impurity transport calculations are presented for the scrape-off layer of a tokamak with a poloidal ring limiter. The theory is based on the drift-kinetic equations for the impurity ions in their different ionization states. It is developed in the li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::930a428e65d914b10a00ae0254c63e18
https://doi.org/10.1088/0029-5515/21/5/008
https://doi.org/10.1088/0029-5515/21/5/008
Autor:
H.A. Claassen, H. Repp
Publikováno v:
Journal of Nuclear Materials. :560-565
A collisional theory for the transport of heavy wall released impurities in the plasma scrape-off layer is developed, which to zero order approximation considers electron impact ionization and Coulomb collisions with the plasma ions. Impurity ion con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b281372cba34b785c56946e3a7016ae
https://doi.org/10.1016/0022-3115(78)90207-6
https://doi.org/10.1016/0022-3115(78)90207-6