Zobrazeno 1 - 10
of 483
pro vyhledávání: '"Tinguely R"'
With plasma currents up to 8.7 MA, the SPARC tokamak runs the risk of forming multi-MA beams of relativistic "runaway" electrons (REs) which could damage plasma facing components if unmitigated. The infrared (IR) and visible imaging and visible spect
Externí odkaz:
http://arxiv.org/abs/2409.13670
Autor:
Tinguely, R. A., Puglia, P. G., Dowson, S., Porkolab, M., Douai, D., Fasoli, A., Frassinetti, L., King, D., Schneider, P., Contributors, JET
While much about Alfven eigenmode (AE) stability has been explored in previous and current tokamaks, open questions remain for future burning plasma experiments, especially regarding exact stability threshold conditions and related isotope effects; t
Externí odkaz:
http://arxiv.org/abs/2405.17752
Autor:
Battey, A. F., Hansen, C., Garnier, D., Weisberg, D., Paz-Soldan, C., Sweeney, R., Tinguely, R. A., Creely, A. J.
A new three-dimensional electromagnetic modeling tool ThinCurr has been developed using the existing PSI-Tet finite-element code in support of conducting structure design work for both the SPARC and DIII-D tokamaks. Within this framework a 3D conduct
Externí odkaz:
http://arxiv.org/abs/2309.15336
Autor:
Tinguely, R. A., Pusztai, I., Izzo, V. A., S'"arkimäki, K., Fülöp, T., Garnier, D. T., Granetz, R. S., Hoppe, M., Paz-Soldan, C., Sundström, A., Sweeney, R.
In [V.A. Izzo et al 2022 Nucl. Fusion 62 096029], state-of-the-art modeling of thermal and current quench (CQ) MHD coupled with a self-consistent evolution of runaway electron (RE) generation and transport showed that a non-axisymmetric (n = 1) in-ve
Externí odkaz:
http://arxiv.org/abs/2301.01435
Autor:
Tinguely, R. A., Gonzalez-Martin, J., Puglia, P. G., Fil, N., Dowson, S., Porkolab, M., Kumar, I., Podestà, M., Baruzzo, M., Fasoli, A., Kazakov, Ye. O., Nave, M. F. F., Nocente, M., Ongena, J., Štancar, Ž., Contributors, JET
In this paper, we report the novel experimental observation of both unstable and stable Toroidicity-induced Alfv\'en Eigenmodes (TAEs) measured simultaneously in a JET tokamak plasma. The three-ion-heating scheme (D-DNBI-3He) is employed to accelerat
Externí odkaz:
http://arxiv.org/abs/2208.05052
Autor:
Izzo, V. A., Pusztai, I., Särkimäki, K., Sundström, A., Garnier, D., Weisberg, D., Tinguely, R. A., Paz-Soldan, C., Granetz, R. S., Sweeney, R.
The operation of a 3D coil--passively driven by the current quench loop voltage--for the deconfinement of runaway electrons is modeled for disruption scenarios in the SPARC and DIII-D tokamaks. Nonlinear MHD modeling is carried out with the NIMROD co
Externí odkaz:
http://arxiv.org/abs/2207.12450
Autor:
Tinguely, R. A., Fil, N., Puglia, P. G., Dowson, S., Porkolab, M., Guillemot, V., Podestà, M., Baruzzo, M., Dumont, R., Fasoli, A., Fitzgerald, M., Kazakov, Ye. O., Nave, M. F. F., Nocente, M., Ongena, J., Sharapov, S. E., Štancar, Ž., Contributors, JET
The interaction of Alfv\'{e}n Eigenmodes (AEs) and energetic particles is one of many important factors determining the success of future tokamaks. In JET, eight in-vessel antennas were installed to actively probe stable AEs with frequencies ranging
Externí odkaz:
http://arxiv.org/abs/2111.13569
Autor:
Zhu, J., Rea, C., Granetz, R. S., Marmar, E. S., Montes, K. J., Sweeney, R., Tinguely, R. A., Chen, D. L., Shen, B., Xiao, B. J., Humphreys, D., Barr, J., Meneghini, O.
Next generation high performance (HP) tokamaks risk damage from unmitigated disruptions at high current and power. Achieving reliable disruption prediction for a device's HP operation based on its low performance (LP) data is key to success. In this
Externí odkaz:
http://arxiv.org/abs/2109.08956
Autor:
Tinguely, R. A., Puglia, P. G., Fil, N., Dowson, S., Porkolab, M., Dvornova, A., Fasoli, A., Fitzgerald, M., Guillemot, V., Huysmans, G. T. A., Maslov, M., Sharapov, S., Testa, D., Contributors, JET
This paper presents a dedicated study of plasma-antenna (PA) coupling with the Alfven Eigenmode Active Diagnostic (AEAD) in JET. Stable AEs and their resonant frequencies f, damping rates $\gamma$ < 0, and toroidal mode numbers n are measured for var
Externí odkaz:
http://arxiv.org/abs/2011.02768
Autor:
Tinguely, R. A., Puglia, P. G., Fil, N., Dowson, S., Porkolab, M., Fasoli, A., Testa, D., Contributors, JET
This paper presents results of extensive analysis of mode excitation observed during the operation of the Alfv\'{e}n Eigenmode Active Diagnostic (AEAD) in the JET tokamak during the 2019-2020 deuterium campaign. Six of eight toroidally spaced antenna
Externí odkaz:
http://arxiv.org/abs/2007.09412