Zobrazeno 1 - 10
of 1 893
pro vyhledávání: '"Garcia A. J. M."'
Autor:
Carralero, D., Estrada, T., García-Regaña, J. M., Sánchez, E., Windisch, T., Alonso, A., Maragkoudakis, E., Brandt, C., Brunner, K. J., Gallego-Castillo, C., Rahbarnia, K., Thienpondt, H., Team, the Wendelstein 7-X
In this work, we present the first experimental evidence of the presence of zonal flow (ZF) structures in the optimized stellarator Wendelstein 7-X. Using an assortment of diagnostics, flux surface-uniform, electrostatic flow oscillations have been m
Externí odkaz:
http://arxiv.org/abs/2406.12514
Autor:
García-Calcines, J. M.
In the context of the Lusternik-Schnirelmann category, researcher T. Srinivasan demonstrated that when the space under consideration is an absolute neighborhood retract, its category can be realized through arbitrary subsets, not necessarily open one
Externí odkaz:
http://arxiv.org/abs/2405.13836
CIEMAT-QI4 is a quasi-isodynamic stellarator configuration that simultaneously features very good fast-ion confinement in a broad range of $\beta$ values, low neoclassical transport and bootstrap current, and ideal magnetohydrodynamic stability up to
Externí odkaz:
http://arxiv.org/abs/2404.16440
Autor:
Ahyoune, S., Melcón, A. Álvarez, Cuendis, S. Arguedas, Calatroni, S., Cogollos, C., Díaz-Morcillo, A., Döbrich, B., Gallego, J. D., García-Barceló, J. M., Gimeno, B., Golm, J., Granados, X., Gutierrez, J., Herwig, L., Irastorza, I. G., Lamas, N., Lozano-Guerrero, A., Millar, W. L., Malbrunot, C., Miralda-Escudé, J., Navarro, P., Navarro-Madrid, J. R., Puig, T., Siodlaczek, M., Telles, G. T., Wuensch, W.
We describe the results of a haloscope axion search performed with an 11.7 T dipole magnet at CERN. The search used a custom-made radio-frequency cavity coated with high-temperature superconducting tape. A set of 27 h of data at a resonant frequency
Externí odkaz:
http://arxiv.org/abs/2403.07790
Autor:
González-Jerez, A., García-Regaña, J. M., Calvo, I., Carralero, D., Estrada, T., Sánchez, E., Barnes, M., Team, the W7-X
The first experimental campaigns of Wendelstein 7-X (W7-X) have shown that turbulence plays a decisive role in the performance of neoclassically optimized stellarators. This stresses the importance of understanding microturbulence from the theoretica
Externí odkaz:
http://arxiv.org/abs/2312.10221
Autor:
Podavini, L., Zocco, A., García-Regaña, J. M., Barnes, M., Parra, F. I., Mishchenko, A., Helander, P.
Electrostatic gyrokinetic instabilities and turbulence in the Wendelstein 7-X stellarator are studied. Particular attention is paid to the ion-temperature-gradient (ITG) instability and its character close to marginal stability [Floquet-type turbulen
Externí odkaz:
http://arxiv.org/abs/2311.04342
Haloscopes, microwave resonant cavities utilized in detecting dark matter axions within powerful static magnetic fields, are pivotal in modern astrophysical research. This paper delves into the realm of cylindrical geometries, investigating technique
Externí odkaz:
http://arxiv.org/abs/2309.13199
Autor:
Ahyoune, S., Melcón, A. Álvarez, Cuendis, S. Arguedas, Calatroni, S., Cogollos, C., Devlin, J., Díaz-Morcillo, A., Díez-Ibáñez, D., Döbrich, B., Galindo, J., Gallego, J. D., García-Barceló, J. M., Gimeno, B., Golm, J., Gu, Y., Herwig, L., Irastorza, I. G., Lozano-Guerrero, A. J., Malbrunot, C., Miralda-Escudé, J., Monzó-Cabrera, J., Navarro, P., Navarro-Madrid, J. R., Redondo, J., Reina-Valero, J., Schmieden, K., Schneemann, T., Siodlaczek, M., Ulmer, S., Wuensch, W.
In the near future BabyIAXO will be the most powerful axion helioscope, relying on a custom-made magnet of two bores of 70 cm diameter and 10 m long, with a total available magnetic volume of more than 7 m$^3$. In this document, we propose and descri
Externí odkaz:
http://arxiv.org/abs/2306.17243
A systematic study of the impact of impurities on the turbulent heat fluxes is presented for the stellarator Wendelstein 7-X (W7-X) and, for comparison, the Large Helical Device and ITER. By means of nonlinear multispecies gyrokinetic simulations, it
Externí odkaz:
http://arxiv.org/abs/2305.16805
Autor:
García-Barceló, J. M., Melcón, A. Álvarez, Díaz-Morcillo, A., Gimeno, B., Lozano-Guerrero, A. J., Monzo-Cabrera, J., Navarro-Madrid, J. R., Navarro, P.
Haloscopes are resonant cavities that serve as detectors of dark matter axions when they are immersed in a strong static magnetic field. In order to increase the volume and improve its introduction within dipole or solenoid magnets for axion searches
Externí odkaz:
http://arxiv.org/abs/2302.10569