Search

Your search keyword '"Diab, Raymond"' showing total 2 results
Start Over Author "Diab, Raymond"
2 results on '"Diab, Raymond"'

1. NSTX-U research advancing the physics of spherical tokamaks

Author

Berkery, John W, primary, Adebayo-Ige, Promise Oluwagbope, additional, Al Khawaldeh, H., additional, Avdeeva, Galina, additional, Baek, Seung Gyou, additional, Banerjee, Santanu, additional, Barada, K., additional, Battaglia, Devon, additional, Bell, Ronald E, additional, Belli, Emily A, additional, Belova, Elena, additional, Bertelli, Nicola, additional, Bisai, Nirmal, additional, Bonoli, Paul T, additional, Boyer, Dan, additional, Butt, Jalal, additional, Candy, Jeff, additional, Chang, Choong Seock, additional, Clauser, Cesar F, additional, Corona Rivera, L.D., additional, Curie, M., additional, de Vries, Peter C, additional, Diab, Raymond, additional, Diallo, Ahmed, additional, Dominski, Julien, additional, Duarte, Vinicius N, additional, Emdee, Eric, additional, Ferraro, N, additional, Fitzpatrick, R., additional, Foley, E L, additional, Fredrickson, Eric, additional, Galante, M., additional, Gan, Kaifu, additional, Gerhardt, Stefan P, additional, Goldston, Robert James, additional, Guttenfelder, W., additional, Hager, R, additional, Hanson, Michael O., additional, Jardin, Stephen C, additional, Jenkins, Thomas G, additional, Kaye, Stanley M, additional, Khodak, Andrei, additional, Kinsey, Jon, additional, Kleiner, Andreas, additional, Kolemen, Egemen, additional, Ku, Seung-Hoe, additional, Lampert, Mate, additional, Leard, Brian, additional, LeBlanc, Benoit P, additional, Lestz, Jeff, additional, Levinton, Fred, additional, Liu, Chang, additional, Looby, T., additional, Lunsford, Robert, additional, Macwan, T., additional, Maingi, R, additional, McClenaghan, Joseph, additional, Menard, Jonathan E, additional, Munaretto, Stefano, additional, Ono, Masayuki, additional, Pajares, Andres, additional, Parisi, Jason F, additional, Park, J.-K., additional, Parsons, M., additional, Patel, Bhavin S, additional, Petrov, Yuri V., additional, Podesta, Mario, additional, Poli, F., additional, Porcelli, M., additional, Rafiq, Tariq, additional, Sabbagh, Steve A, additional, Sanchez-Villar, Alvaro, additional, Schuster, Eugenio, additional, Schwartz, J., additional, Sharma, A, additional, Shiraiwa, Syunichi, additional, Sinha, Priyanjana, additional, Smith, David, additional, Smith, Sterling P, additional, Soukhanovskii, V, additional, Staebler, Gary M, additional, Startsev, Edward A, additional, Stratton, Brentley, additional, Thome, Kathreen E, additional, Tierens, Wouter, additional, Tobin, Matthew, additional, Uzun-Kaymak, I, additional, Van Compernolle, Bart, additional, Wai, J, additional, Wang, Weixing, additional, Wehner, Will P, additional, Welander, Anders S, additional, Yang, James, additional, Zamkovska, Veronika, additional, Zhang, X, additional, Zhu, Xiaolong, additional, and Zweben, S, additional

Published
2024
Full Text
View/download PDF

2. Particle-in-cell simulations of parasitic electrostatic wave excitation in the ion cyclotron range of frequencies and high harmonic fast wave regimes.

Author

Diab, Raymond, Baek, Seung-Gyou, Bonoli, Paul, Jenkins, Thomas G., Ono, Masayuki, and Smithe, David

Subjects
*ION acoustic waves, *INHOMOGENEOUS plasma, *HIGH temperature plasmas, *ION temperature, *CYCLOTRONS
Abstract

Using the open-source code SMILEI [J. Derouillat et al., Comput. Phys. Commun. 222, 351-373 (2018)], we perform one-dimensional full-f particle-in-cell (PIC) simulations of parasitic electrostatic wave excitation in the Ion Cyclotron Range of Frequencies (ICRF) and High Harmonic Fast Wave (HHFW) regimes in an inhomogeneous plasma. We first study direct coupling from the fast wave to electrostatic waves at the lower hybrid (LH) resonance (S=0). In the ICRF regime, we show that the fast wave can couple to the Ion Bernstein Wave (IBW), which propagates beyond the LH resonance layer. On the other hand, in the HHFW regime, no direct coupling to the IBW is observed, but electrostatic waves, likely to be Hot Ion Plasma Waves (HIPW or HPW), are seen on the low-density side of the LH resonance layer. The coupling efficiency to electrostatic waves is seen to increase with ion temperature. Parametric decay instabilities (PDIs) are then investigated in both regimes. In the ICRF regime, both resonant and non-resonant decay channels are observed and compared with theory. In the HHFW regime, we observe multiple sidebands separated by the ion cyclotron frequency, as measured experimentally on NSTX [J. R. Wilson et al., AIP Conf. Proc. 787, 66 (2005)]. The nature of these waves is discussed. Perpendicular ion heating is also found in the region where PDIs occur, consistent with experimental observations. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results