Search Results - "Beidler, C. D."

Turbulence Mechanisms of Enhanced Performance Stellarator Plasmas by Xanthopoulos, P., Bozhenkov, S. A., Beurskens, M. N., Smith, H. M., Plunk, G. G., Helander, P., Beidler, C. D., Alcusón, J. A., Alonso, A., Dinklage, A., Ford, O., Fuchert, G., Geiger, J., Proll, J. H. E., Pueschel, M. J., Turkin, Y., Warmer, F.

“…We theoretically assess two mechanisms thought to be responsible for the enhanced performance observed in plasma discharges of the Wendelstein 7-X stellarator…”
Get full text

First Observation of a Stable Highly Dissipative Divertor Plasma Regime on the Wendelstein 7-X Stellarator by Zhang, D, König, R, Feng, Y, Burhenn, R, Brezinsek, S, Jakubowski, M, Buttenschön, B, Niemann, H, Pavone, A, Krychowiak, M, Kwak, S, Svensson, J, Gao, Y, Pedersen, T S, Alonso, A, Baldzuhn, J, Beidler, C D, Biedermann, C, Bozhenkov, S, Brunner, K J, Damm, H, Hirsch, M, Giannone, L, Drewelow, P, Effenberg, F, Fuchert, G, Hammond, K C, Höfel, U, Killer, C, Knauer, J, Laqua, H P, Laube, R, Pablant, N, Pasch, E, Penzel, F, Rahbarnia, K, Reimold, F, Thomsen, H, Winters, V, Wagner, F, Klinger, T, W-X Team

“…For the first time, the optimized stellarator Wendelstein 7-X has operated with an island divertor. An operation regime in hydrogen was found in which the…”
Get full text

Impact of Magnetic Field Configuration on Heat Transport in Stellarators and Heliotrons by Warmer, Felix, Tanaka, K, Xanthopoulos, P, Nunami, M, Nakata, M, Beidler, C D, Bozhenkov, S A, Beurskens, M N A, Brunner, K J, Ford, O P, Fuchert, G, Funaba, H, Geiger, J, Gradic, D, Ida, K, Igami, H, Kubo, S, Langenberg, A, Laqua, H P, Lazerson, S, Morisaki, T, Osakabe, M, Pablant, N, Pasch, E, Peterson, B, Satake, S, Seki, R, Shimozuma, T, Smith, H M, Stange, T, Stechow, A V, Sugama, H, Suzuki, Y, Takahashi, H, Tokuzawa, T, Tsujimura, T, Turkin, Y, Wolf, R C, Yamada, I, Yanai, R, Yasuhara, R, Yokoyama, M, Yoshimura, Y, Yoshinuma, M, Zhang, D, W-X Team, Lhd Experimental Group

“…We assess the magnetic field configuration in modern fusion devices by comparing experiments with the same heating power, between a stellarator and a…”
Get full text

Magnetic configuration effects on the Wendelstein 7-X stellarator by Dinklage, A., Beidler, C. D., Helander, P., Fuchert, G., Maaßberg, H., Rahbarnia, K., Sunn Pedersen, T., Turkin, Y., Wolf, R. C., Alonso, A., Andreeva, T., Blackwell, B., Bozhenkov, S., Buttenschön, B., Czarnecka, A., Effenberg, F., Feng, Y., Geiger, J., Hirsch, M., Höfel, U., Jakubowski, M., Klinger, T., Knauer, J., Kocsis, G., Krämer-Flecken, A., Kubkowska, M., Langenberg, A., Laqua, H. P., Marushchenko, N., Mollén, A., Neuner, U., Niemann, H., Pasch, E., Pablant, N., Rudischhauser, L., Smith, H. M., Schmitz, O., Stange, T., Szepesi, T., Weir, G., Windisch, T., Wurden, G. A., Zhang, D.

“…The two leading concepts for confining high-temperature fusion plasmas are the tokamak and the stellarator. Tokamaks are rotationally symmetric and use a large…”
Get full text

Wendelstein 7-X Program-Demonstration of a Stellarator Option for Fusion Energy by Wolf, R. C., Beidler, C. D., Dinklage, A., Helander, P., Laqua, H. P., Schauer, F., Sunn Pedersen, T., Warmer, F.

“…The superconducting stellarator Wendelstein 7-X is currently being commissioned. First plasmas are expected for the second half of 2015. W7-X is designed to…”
Get full text

Publisher Correction: Demonstration of reduced neoclassical energy transport in Wendelstein 7-X by Beidler, C. D., Smith, H. M., Alonso, A., Andreeva, T., Baldzuhn, J., Beurskens, M. N. A., Borchardt, M., Bozhenkov, S. A., Brunner, K. J., Damm, H., Drevlak, M., Ford, O. P., Fuchert, G., Geiger, J., Helander, P., Hergenhahn, U., Hirsch, M., Höfel, U., Kazakov, Ye. O., Kleiber, R., Krychowiak, M., Kwak, S., Langenberg, A., Laqua, H. P., Neuner, U., Pablant, N. A., Pasch, E., Pavone, A., Pedersen, T. S., Rahbarnia, K., Schilling, J., Scott, E. R., Stange, T., Svensson, J., Thomsen, H., Turkin, Y., Warmer, F., Wolf, R. C., Zhang, D.

Get full text

Wendelstein 7-X on the path to long-pulse high-performance operation by Endler, M., Baldzuhn, J., Beidler, C.D., Bosch, H.-S., Bozhenkov, S., Buttenschön, B., Dinklage, A., Fellinger, J., Feng, Y., Fuchert, G., Gao, Y., Geiger, J., Grulke, O., Hartmann, D., Jakubowski, M., König, R., Laqua, H.P., Lazerson, S., McNeely, P., Naujoks, D., Neuner, U., Otte, M., Pasch, E., Sunn Pedersen, T., Perseo, V., Puig Sitjes, A., Rahbarnia, K., Rust, N., Schmitz, O., Spring, A., Stange, T., von Stechow, A., Turkin, Y., Wang, E., Wolf, R.C.

“…•W7-X achieved several of its project goals during the first operation phases.•Boronisation reduced the impurity content strongly and allowed high-density…”
Get full text

Towards assembly completion and preparation of experimental campaigns of Wendelstein 7-X in the perspective of a path to a stellarator fusion power plant by Klinger, T., Baylard, C., Beidler, C.D., Boscary, J., Bosch, H.S., Dinklage, A., Hartmann, D., Helander, P., Maßberg, H., Peacock, A., Pedersen, T.S., Rummel, T., Schauer, F., Wegener, L., Wolf, R.

“…The superconducting stellarator device Wendelstein 7-X, currently under construction, is the key device for the proof of stellarator optimization principles…”
Get full text

Status of HELIAS reactor studies by Igitkhanov, Yu, Andreeva, T., Beidler, C.D., Harmeyer, E., Herrnegger, F., Kisslinger, J., Wagner, F., Wobig, H.

“…In this paper an overview of the helical advanced stellarator (Helias) reactor studies is presented. The Helias reactor (HSR) is a reactor candidate of the…”
Get full text

System Code Analysis of HELIAS-Type Fusion Reactor and Economic Comparison With Tokamaks by Warmer, F., Torrisi, S. B., Beidler, C. D., Dinklage, A., Feng, Y., Geiger, J., Schauer, F., Turkin, Y., Wolf, R., Xanthopoulos, P., Kemp, R., Knight, P., Lux, H., Ward, D.

“…System codes are commonly employed for the analysis and conceptual design of fusion reactors. For the helical-axis advanced stellarator (HELIAS) line, a new…”
Get full text

HELIAS module development for systems codes by Warmer, F., Beidler, C.D., Dinklage, A., Egorov, K., Feng, Y., Geiger, J., Schauer, F., Turkin, Y., Wolf, R., Xanthopoulos, P.

“…In order to study and design next-step fusion devices such as DEMO, comprehensive systems codes are commonly employed. In this work HELIAS-specific models are…”
Get full text

Implementation and verification of a HELIAS module for the systems code PROCESS by Warmer, F., Beidler, C.D., Dinklage, A., Egorov, K., Feng, Y., Geiger, J., Kemp, R., Knight, P., Schauer, F., Turkin, Y., Ward, D., Wolf, R., Xanthopoulos, P.

“…•The implementation of a HELIAS module in the systems code PROCESS is discussed.•Verification w.r.t. W7-X and its performance predictions yields very good…”
Get full text

From W7-X to a HELIAS fusion power plant: On engineering considerations for next-step stellarator devices by Warmer, F., Bykov, V., Drevlak, M., Häußler, A., Fischer, U., Stange, T., Beidler, C.D., Wolf, R.C.

“…•Progress on the optimisation of equilibrium and modular coils is discussed.•Neutronic analysis of the HELIAS concept has been initiated.•Different methods…”
Get full text

ECRH scenarios with selective heating of trapped/passing electrons in the W7-X Stellarator by Marushchenko, N B, Beidler, C D, Erckmann, V, Geiger, J, Helander, P, Laqua, H P, Maassberg, H, Turkin, Y

“…Using specific features of the magnetic equilibrium in the W7-X stellarator, the ECRH scenarios with combined X2 and X3 modes are discussed. The RF beams for…”
Get full text

Systems studies of HELIAS power plants and comparison to tokamaks by Warmer, F., Torrisi, S. B., Beidler, C. D., Dinklage, A., Feng, Y., Geiger, J., Schauer, F., Turkin, Y., Wolf, R., Xanthopoulos, P., Kemp, R., Knight, P., Lux, H., Ward, D.

“…Systems codes are commonly employed for the analysis and conceptual design of next-step burning-plasma devices. For the helical-axis advanced stellarator…”
Get full text

ECRH and ECCD scenarios for W7-X by Marushchenko, N. B., Beidler, C. D., Erckmann, V., Geiger, J., Helander, P., Laqua, H.P., Maassberg, H., Turkin, Y.

“…The main ECRH scenarios for the W7-X Stellarator are described. Both X2 (low and moderate densities) and O2 scenarios (high density) have been studied. Since…”
Get full text

Demonstration of reduced neoclassical energy transport in Wendelstein 7-X by Beidler, C. D., Smith, H. M., Alonso, A., Andreeva, T., Baldzuhn, J., Beurskens, M. N. A., Borchardt, M., Bozhenkov, S. A., Brunner, K. J., Damm, H., Drevlak, M., Ford, O. P., Fuchert, G., Geiger, J., Helander, P., Hergenhahn, U., Hirsch, M., Höfel, U., Kazakov, Ye. O., Kleiber, R., Krychowiak, M., Kwak, S., Langenberg, A., Laqua, H. P., Neuner, U., Pablant, N. A., Pasch, E., Pavone, A., Pedersen, T. S., Rahbarnia, K., Schilling, J., Scott, E. R., Stange, T., Svensson, J., Thomsen, H., Turkin, Y., Warmer, F., Wolf, R. C., Zhang, D.

“…Research on magnetic confinement of high-temperature plasmas has the ultimate goal of harnessing nuclear fusion for the production of electricity. Although the…”
Get full text

Reduction of neoclassical bulk-ion transport to avoid helium-ash retention in stellarator reactors by Beidler, C.D., Drevlak, M., Geiger, J., Helander, P., Smith, H.M., Turkin, Y.

“…Abstract The reduction of neoclassical energy transport in stellarators has traditionally focussed on optimizing magnetic fields for small values of ‘effective…”
Get full text

Self-consistent, global, neoclassical radial-electric-field calculations of electron-ion-root transitions in the W7-X stellarator by Kuczyński, M.D., Kleiber, R., Smith, H.M., Beidler, C.D., Borchardt, M., Geiger, J., Helander, P.

“…Abstract The radial electric field in the Wendelstein 7-X stellarator is computed by means of self-consistent, global, neoclassical simulations using the…”
Get full text

Properties of a new quasi-axisymmetric configuration by Henneberg, S. A, Drevlak, M, Nührenberg, C, Beidler, C. D, Turkin, Y, Loizu, J, Helander, P

“…A novel, compact, quasi-axisymmetric configuration is presented which exhibits low fast-particle losses and is stable to ideal MHD instabilities. The design…”
Get full text