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Your search keyword '"Laqua H. -P."' showing total 10 results
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10 results on '"Laqua H. -P."'

1. Progress in High Power Gyrotron Development Projects at KIT

Author

Gantenbein, G., primary, Avramidis, K., additional, Ell, B., additional, Delpech, L., additional, Feuerstein, L., additional, Illy, S., additional, Jelonnek, J., additional, Jin, J., additional, Krier, L., additional, Laqua, H. P., additional, Ruess, T., additional, Rzesnicki, T., additional, Stanculovic, S., additional, and Thumm, M., additional

Published
2023
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2. Frequency Stabilization of Megawatt-Class 140 GHz Gyrotrons at W7-X Using an Off-the-Shelf PLL System

Author

Krier, L., primary, Avramidis, K. A., additional, Braune, H., additional, Gantenbein, G., additional, Illy, S., additional, Ioannidis, Z., additional, Jelonnek, J., additional, Laqua, H. P., additional, Marsen, S., additional, Moseev, D., additional, Noke, F., additional, Pagonakis, I. Gr., additional, Ruess, T., additional, Rzesnicki, T., additional, Stange, T., additional, Thumm, M., additional, and Wolf, R. C., additional

Published
2021
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3. ECRH at W7-X - Concurrent Operation of 10 Gyrotrons

Author

Braune, H., primary, Brunner, K.J., additional, Laqua, H. P., additional, Marsen, S., additional, Moseev, D., additional, Noke, F., additional, Purps, F., additional, Schneider, N., additional, Schulz, T., additional, Stange, T., additional, Uhren, P., additional, and Wilde, F., additional

Published
2018
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6. Wendelstein 7-X Program—Demonstration of a Stellarator Option for Fusion Energy.

Author

Wolf, R. C., Beidler, C. D., Dinklage, A., Helander, P., Laqua, H. P., Schauer, F., Sunn Pedersen, T., and Warmer, F.

Subjects
STELLARATORS, PLASMA devices, PLASMA temperature, POWER plants, EXTRAPOLATION, TOKAMAKS
Abstract

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 overcome the main drawbacks of the stellarator concept and simultaneously demonstrate its intrinsic advantages relative to the tokamak—i.e., steady-state operation without the requirement of current drive or stability control. An elaborate optimization procedure was used to avoid excessive neoclassical transport losses at high plasma temperature, while simultaneously achieving satisfactory equilibrium and stability properties at high $\beta $ in combination with a viable divertor concept. In addition, fast-ion confinement must be consistent with the requirements of alpha-heating in a power plant. Plasma operation of Wendelstein 7-X follows a staged approach following the successive completion of the in-vessel components. The main objective of Wendelstein 7-X is the demonstration of steady-state plasma at fusion relevant plasma parameters. Wendelstein 7-X will address major questions for the extrapolation of the concept to a power plant. These include divertor operation at high densities, plasma fueling at high central temperatures, avoiding impurity accumulation, and an assessment of the effect of neoclassical optimization on turbulent transport and fast-ion confinement. A power plant concept based on an extrapolation from Wendelstein 7-X, the helical advanced stellarator, has been developed. [ABSTRACT FROM AUTHOR]

Published
2016
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7. Progress on 140 GHz, 1 MW, CW series gyrotrons for W7-X

Author

Jelonnek, J., primary, Braune, H., additional, Dammertz, G., additional, Erckmann, V., additional, Flamm, J., additional, Gantenbein, G., additional, Hollmann, F., additional, Jonitz, L., additional, Kasparek, W., additional, Kern, S., additional, Laqua, H. P., additional, Lechte, C., additional, Legrand, F., additional, Leonhardt, W., additional, Lietaer, G., additional, Michel, G., additional, Noke, F., additional, Purps, F., additional, Samartsev, A., additional, Schlaich, A., additional, Schmid, M., additional, Thumm, M., additional, and Uhren, P., additional

Published
2012
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10. High-Power Experiments with 140 GHz Series Gyrotrons for W7-X

Author

Gantenbein, G., primary, Braune, H., additional, Dammertz, G., additional, Alberti, S., additional, Erckmann, V., additional, Hogge, J.P., additional, Illy, S., additional, Kasparek, W., additional, Laqua, H. P., additional, Legrand, F., additional, Leonhardt, W., additional, Lievin, C., additional, Michel, G., additional, Neffe, G., additional, Noke, F., additional, Piosczyk, B., additional, Purps, F., additional, Schmid, M., additional, Thumm, M., additional, and Tran, M.Q., additional

Published
2007
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