Zobrazeno 1 - 10
of 36
pro vyhledávání: '"F. Gadelmeier"'
Autor:
K. McCormick, F. Gadelmeier, Thomas Klinger, P. Grigull, D. Hildebrandt, A. Herrmann, Dirk Naujoks, M. Hirsch
Publikováno v:
Plasma Physics and Controlled Fusion. 46:711-721
The power exhaust from a burning plasma is a key problem in the design of future fusion reactors. Presently employed divertor materials restrict the stationary heat flux to 10 MW m−2. This paper deals with the power load onto the divertor target of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8e8d2a86484e481dd406a9bd3a206ff
https://doi.org/10.1088/0741-3335/46/5/001
https://doi.org/10.1088/0741-3335/46/5/001
Autor:
M. Hirsch, R. Jaenicke, Suguru Masuzaki, A. Werner, D. Hildebrandt, P. Grigull, F. Sardei, Dirk Naujoks, U. Wenzel, H. Renner, F. Gadelmeier, Friedrich E. Wagner, Thomas Klinger, E. Pasch, W As Team, J. P. Knauer, R. Burhenn, H. Ehmler, J. Baldzuhn, N. Ramasubramanian, H. Niedermeyer, D. Hartmann, R. Brakel, J. Kisslinger, K. McCormick, Y. Feng, L. Giannone, R. König, S. Bäumel
Publikováno v:
Fusion Engineering and Design. :49-58
The research on divertors for stellarators is at the beginning. Extensive studies are being prepared on large helical device (LHD) and W7-X. W7-AS is now being operated with an open island divertor (ID) which serves as a test bed for the W7-X diverte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::966b1158832edfdc3a8385897ceb0711
https://doi.org/10.1016/s0920-3796(03)00121-2
https://doi.org/10.1016/s0920-3796(03)00121-2
Publikováno v:
Journal of Nuclear Materials. :738-742
Thermography is applied on the stellarator W7-AS to monitor the thermal load of the recently installed divertor targets. A three dimensional numerical code was developed to evaluate power fluxes arriving at the targets from the measured temporal evol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10a8d1e23bef600b8e72fb2fadd562a2
https://doi.org/10.1016/s0022-3115(02)01490-3
https://doi.org/10.1016/s0022-3115(02)01490-3
Autor:
H. Niedermeyer, F. Gadelmeier, F. Sardei, A. Werner, R. Brakel, K. McCormick, J. Kisslinger, D. Hildebrandt, P. Grigull, Thomas Klinger, Friedrich E. Wagner, Dirk Naujoks, W As Team, U. Wenzel, R. König, D. A. Hartmann, H. Ehmler, R. Jaenicke, Y. Feng, N. Ramasubramanian
Publikováno v:
Journal of Nuclear Materials. :1287-1291
The new island divertor in W7-AS enables quasi steady-state operation with NBI at very high density including scenarios with stable detachment from the targets. Experiments with reversed B-field indicate that the interaction zones on the targets are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d9e41a020d528e9e648d980df06151b
https://doi.org/10.1016/s0022-3115(02)01499-x
https://doi.org/10.1016/s0022-3115(02)01499-x
Autor:
R. Fischer, S. Klose, J. Kisslinger, U. Wenzel, Thomas Klinger, M. Hirsch, N. Rust, R. König, Y. Feng, H. P. Laqua, R. Burhenn, A. Weller, L. Giannone, Dirk Naujoks, E. Holzhauer, E. Pasch, Georg Kühner, D. Hildebrandt, R. Brakel, R. Jaenicke, K. McCormick, P. Grigull, Friedrich E. Wagner, J. P. Knauer, F. Gadelmeier, F. Sardei, N. Ramasubramanian, H. Ehmler, A. Werner, H. Niedermeyer
Publikováno v:
Journal of Nuclear Materials. :1131-1140
A promisingnew operational reg ime on the Wendelstein stellarator W7-AS has been discovered, fulfillingthe conditions of optimal core behavior in combination with edge parameters suitable for successful divertor scenarios. This regime, the high densi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a571024be7d99393005b25b18e4bb2ec
https://doi.org/10.1016/s0022-3115(02)01506-4
https://doi.org/10.1016/s0022-3115(02)01506-4
Autor:
B. Schweer, N. Ramasubramanian, R. König, K. McCormick, F. Gadelmeier, U. Wenzel, M. Brix, P. Grigull
Publikováno v:
Review of Scientific Instruments. 74:2052-2055
The island divertor concept, which is regarded as being the natural concept for low shear advanced stellarators like W7-AS and W7-X, has for the first time been put to a realistic test in the present experimental campaign of W7-AS. A large number of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::733548b1a7053a35550492a7e0e22d7a
https://doi.org/10.1063/1.1537034
https://doi.org/10.1063/1.1537034
Autor:
A. Weller, G. Kuehner, H. Niedermeyer, M. Kick, J. Baldzuhn, D. Hildebrandt, D. A. Hartmann, H. Maassberg, R. Brakel, M. Endler, R. Burhenn, K. McCormick, H. P. Laqua, E. Speth, N. Rust, F. Schneider, J. Geiger, Thomas Klinger, V. Erckmann, H. J. Hartfuss, A. Werner, J. Saffert, F. Gadelmeier, U. Wenzel, N. Ruhs, H. Ehmler, E. Holzhauer, J. P. Knauer, R. Narayanan, Y. Feng, E. Pasch, F. Sardei, L. Giannone, R. Jaenicke, Friedrich E. Wagner, S Baeumel, E. Wuersching, M. Schubert, M. Hirsch, R. Koenig, P. Grigull, J. Kisslinger, S. Klose
Publikováno v:
Scopus-Elsevier
Stellarators have the intrinsic property of steady state operation. However, on present-day stellarators the pulse length is usually not only limited due to technical reasons, but also by physical problems. Lack of density control and a subsequent ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::127e10a8649b3a1f30282a6b23e2b19a
https://doi.org/10.1088/0741-3335/44/12b/314
https://doi.org/10.1088/0741-3335/44/12b/314
Autor:
U. Wenzel, D. Hildebrandt, Heinrich P. Laqua, F. Sardei, D. Hartmann, Ralf König, R. Jaenicke, Y. Feng, N. Ramasubramanian, K. McCormick, Georg Kühner, R. Brakel, Dirk Naujoks, N. Rust, M. Hirsch, H. Niedermeyer, F. Gadelmeier, F. Wagner, L. Giannone, A. Weller, R. Burhenn, J. Kisslinger, H. Ehmler, J. P. Knauer, P. Grigull, J. Baldzuhn
Publikováno v:
Plasma Physics and Controlled Fusion. 43:A175-A193
W7-AS has recently been equipped with ten open divertor modules in order to experimentally evaluate the island divertor concept. First results are reported in this paper. The new divertors enable access to a new NBI-heated, very high density (up to e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::286e45d6920afb6868164b9d83c1761f
https://doi.org/10.1088/0741-3335/43/12a/313
https://doi.org/10.1088/0741-3335/43/12a/313
Autor:
D. Hildebrandt, R. Jaenicke, H. J. Hartfuss, J. Kisslinger, H. Ehmler, F. Gadelmeier, P. Grigull, J. Baldzuhn, L. Giannone, M. Hirsch, Friedrich E. Wagner, A. Weller, C. Wendland, K. McCormick, R. Koenig
Publikováno v:
Journal of Nuclear Materials. :1009-1012
In NBI discharges with density ramps in W7-AS, the quiescent H-mode is restricted to the same ranges of the edge rotational transform as in ECRH discharges and occurs above threshold densities ≥ 10 20 m 3 which increase with heating power. Higher p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4a41871a45e596e446cf32d00ec23e6
https://doi.org/10.1016/s0022-3115(00)00659-0
https://doi.org/10.1016/s0022-3115(00)00659-0
Effect of anisotropic D–D fusion neutron emission on counter calibration using activation techniques
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 424:561-568
Detailed plasma and neutron transport simulation is needed for accurate measurements of the total neutron emission by means of foil activation during deuterium neutral beam injection into toroidal fusion plasmas. Results from a dedicated package of c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0171d4d2c4edfea4e3537566a7021d11
https://doi.org/10.1016/s0168-9002(98)01358-8
https://doi.org/10.1016/s0168-9002(98)01358-8