Search Results - "Turkin, Y."

Ray-tracing code TRAVIS for ECR heating, EC current drive and ECE diagnostic by Marushchenko, N.B., Turkin, Y., Maassberg, H.

“…A description of the recently developed ray-tracing code TRAVIS is given together with the theoretical background, results of benchmarking and examples of…”
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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…”
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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…”
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Controlling turbulence in present and future stellarators by Xanthopoulos, P, Mynick, H E, Helander, P, Turkin, Y, Plunk, G G, Jenko, F, Görler, T, Told, D, Bird, T, Proll, J H E

“…Turbulence is widely expected to limit the confinement and, thus, the overall performance of modern neoclassically optimized stellarators. We employ novel…”
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A comparison of the influence of plasmoid-drift mechanisms on plasma fuelling by cryogenic pellets in ITER and Wendelstein 7-X by Panadero, N., Koechl, F., Polevoi, A.R., Baldzuhn, J., Beidler, C.D., Lang, P.T., Loarte, A., Matsuyama, A., McCarthy, K.J., Pégourié, B., Turkin, Y.

“…Abstract Pellet injection is the most promising technique to achieve efficient plasma core fuelling, key for attaining stationary scenarios in large magnetic…”
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ESTELL: A Quasi-Toroidally Symmetric Stellarator by Drevlak, M., Brochard, F., Helander, P., Kisslinger, J., Mikhailov, M., Nührenberg, C., Nührenberg, J., Turkin, Y.

“…This work presents the physics design for a simple quasi‐axially symmetric stellarator. A plasma configuration described by a modest number of Fourier…”
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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…”
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Equilibrium evaluation for Wendelstein 7-X experiment programs in the first divertor phase by Andreeva, T., Alonso, J.A., Bozhenkov, S., Brandt, C., Endler, M., Fuchert, G., Geiger, J., Grahl, M., Klinger, T., Krychowiak, M., Langenberg, A., Lazerson, S., Neuner, U., Rahbarnia, K., Pablant, N., Pavone, A., Schilling, J., Schmitt, J., Thomsen, H., Turkin, Y.

“…•Bootstrap current was measured in all reference magnetic configurations of OP1.2a.•Experimental profiles can be reliably mapped with vacuum pre-calculated…”
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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…”
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Integrated modelling: Coupling of surface evolution and plasma-impurity transport by Schmid, K., Effenberg, F., Dinklage, A., Rudischhauser, L., Gao, Y., Mayer, M., Brezinsek, S., Geiger, J., Fuchert, G., Miklos, V., Smith, H., Turkin, Y., Rahbarnia, K., Stange, T., Ipp, K., Brunner, J., Neuner, U., Pavone, A., Hoefel, U., Ipp, H.

“…During the interaction of the scrape off layer (SOL) plasma with the first wall the evolution of both wall and plasma are tightly coupled: The erosion of the…”
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Uncooled Microbolometer Based on VO x Film for Infrared and Millimeter-Wave Radiation by Oleynik, A. S., Medvedev, M. A., Turkin, Y. V.

“…The construction of an uncooled infrared and millimeter-wave microbolometer has been proposed. The microbolometer consists of a converter structure inside a…”
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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…”
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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…”
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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…”
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Administration of Micronized Purified Flavonoid Fraction During Sclerotherapy of Reticular Veins and Telangiectasias: Results of the National, Multicenter, Observational Program VEIN ACT PROLONGED-C1 by Bogachev, Vadim Y., Boldin, Boris V., Turkin, Pavel Y.

“…Introduction Sclerotherapy is a common technique for the removal of intradermal veins. This study examined the rationale for prescribing micronized purified…”
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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…”
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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…”
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Large Scale CW ECRH Systems: Some considerations by Erckmann, V., Kasparek, W., Plaum, B., Lechte, C., Petelin, M.I., Braune, H., Gantenbein, G., Laqua, H. P., Lubiako, L., Marushchenko, N. B., Michel, G., Turkin, Y., Weissgerber, M.

“…Electron Cyclotron Resonance Heating (ECRH) is a key component in the heating arsenal for the next step fusion devices like W7-X and ITER. These devices are…”
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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…”
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Web Services for 3D MHD Equilibrium Data at Wendelstein 7-X by Grahl, M., Svensson, J., Werner, A., Andreeva, T., Bozhenkov, S., Drevlak, M., Geiger, J., Krychowiak, M., Turkin, Y.

“…Consistent physics and engineering models are required for many use cases at Wendelstein 7-X. Web service technology is used to provide convenient access to…”
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