Zobrazeno 1 - 10
of 2 556
pro vyhledávání: '"P, Pusztai"'
Autor:
Guth, N. J., Vallhagen, O., Helander, P., Fülöp, T., Tresnjic, A., Newton, S. L., Pusztai, I.
We detail here a semi-analytical model for the pellet rocket effect, which describes the acceleration of pellets in a fusion plasma due to asymmetries in the heat flux reaching the pellet surface and the corresponding ablation rate. This effect was s
Externí odkaz:
http://arxiv.org/abs/2412.15824
Autor:
Guth, Nico J., Vallhagen, Oskar, Helander, Per, Pusztai, Istvan, Newton, Sarah L., Fülöp, Tünde
Pellets of frozen material travelling into a magnetically confined fusion plasma are accelerated by the so-called pellet rocket effect. The non-uniform plasma heats the pellet ablation cloud asymmetrically, producing pressure-driven, rocket-like prop
Externí odkaz:
http://arxiv.org/abs/2412.15080
Progress in understanding multi-scale collisionless plasma phenomena requires employing tools which balance computational efficiency and physics fidelity. Collisionless fluid models are able to resolve spatio-temporal scales that are unfeasible with
Externí odkaz:
http://arxiv.org/abs/2411.18358
Autor:
Witowski, Jan, Zeng, Ken, Cappadona, Joseph, Elayoubi, Jailan, Chiru, Elena Diana, Chan, Nancy, Kang, Young-Joon, Howard, Frederick, Ostrovnaya, Irina, Fernandez-Granda, Carlos, Schnabel, Freya, Ozerdem, Ugur, Liu, Kangning, Steinsnyder, Zoe, Thakore, Nitya, Sadic, Mohammad, Yeung, Frank, Liu, Elisa, Hill, Theodore, Swett, Benjamin, Rigau, Danielle, Clayburn, Andrew, Speirs, Valerie, Vetter, Marcus, Sojak, Lina, Soysal, Simone Muenst, Baumhoer, Daniel, Choucair, Khalil, Zong, Yu, Daoud, Lina, Saad, Anas, Abdulsattar, Waleed, Beydoun, Rafic, Pan, Jia-Wern, Makmur, Haslina, Teo, Soo-Hwang, Pak, Linda Ma, Angel, Victor, Zilenaite-Petrulaitiene, Dovile, Laurinavicius, Arvydas, Klar, Natalie, Piening, Brian D., Bifulco, Carlo, Jun, Sun-Young, Yi, Jae Pak, Lim, Su Hyun, Brufsky, Adam, Esteva, Francisco J., Pusztai, Lajos, LeCun, Yann, Geras, Krzysztof J.
Treatment selection in breast cancer is guided by molecular subtypes and clinical characteristics. Recurrence risk assessment plays a crucial role in personalizing treatment. Current methods, including genomic assays, have limited accuracy and clinic
Externí odkaz:
http://arxiv.org/abs/2410.21256
The number of Low Earth Orbit~(LEO) satellites has grown enormously in the past years. Their abundance and low orbits allow for low latency communication with a satellite almost anywhere on Earth, and high-speed inter-satellite laser links~(ISLs) ena
Externí odkaz:
http://arxiv.org/abs/2410.16026
Accurate modeling of runaway electron generation and losses during tokamak disruptions is crucial for the development of reactor-scale tokamak devices. In this paper we present a reduced model for runaway electron losses due to flux surface scrape-of
Externí odkaz:
http://arxiv.org/abs/2410.03512
Evolution of the autoresonant plasma wave excitation in two-dimensional particle-in-cell simulations
Autor:
Luo, Mufei., Riconda, Caterina., Grassi, Anna., Wang, Ning., Wurtele, Jonathan S., Fülöp, Tünde, Pusztai, István
The generation of an autoresonantly phase-locked high amplitude plasma waves to the chirped beat frequency of two driving lasers is studied in two dimensions using particle-in-cell simulations. The two-dimensional plasma and laser parameters correspo
Externí odkaz:
http://arxiv.org/abs/2406.06303
Autoresonant phase-locking of the plasma wakefield to the beat frequency of two driving lasers offers advantages over conventional wakefield acceleration methods, since it requires less demanding laser parameters and is robust to variations in the ta
Externí odkaz:
http://arxiv.org/abs/2402.06534
Autor:
Ekmark, Ida, Hoppe, Mathias, Fülöp, Tünde, Jansson, Patrik, Antonsson, Liam, Vallhagen, Oskar, Pusztai, Istvan
Publikováno v:
Journal of Plasma Physics, 90(3), 905900306 (2024)
When simulating runaway electron dynamics in tokamak disruptions, fluid models with lower numerical cost are often preferred to more accurate kinetic models. The aim of this work is to compare fluid and kinetic simulations of a large variety of diffe
Externí odkaz:
http://arxiv.org/abs/2402.05843
Autor:
Vallhagen, Oskar, Hanebring, Lise, Artola, Javier, Lehnen, Michael, Nardon, Eric, Fülöp, Tünde, Hoppe, Mathias, Newton, Sarah, Pusztai, Istvan
This study systematically explores the parameter space of disruption mitigation through shattered pellet injection in ITER with a focus on runaway electron dynamics, using the disruption modelling tool DREAM. The physics fidelity is considerably incr
Externí odkaz:
http://arxiv.org/abs/2401.14167