Zobrazeno 1 - 10
of 36
pro vyhledávání: '"T.L. Rhodes"'
Autor:
G. Wang, T.L. Rhodes, Q.T. Pratt, W.A. Peebles, N.A. Crocker, R. Hong, M.E. Austin, M.A. Van Zeeland, S.P. Smith
Publikováno v:
Nuclear Fusion, Vol 64, Iss 6, p 066024 (2024)
Sawteeth are one of the concerning instabilities in ITER and future burning plasma experiments. Sawtooth dynamics and its interaction with broadband plasma turbulence has been a challenge for predictive simulations of core transport in future fusion
Externí odkaz:
https://doaj.org/article/9b394bc7e09d4d589ae3fa97cf0f5fbc
Autor:
Santanu Banerjee, K. Barada, C. Chrystal, R. Groebner, S. Mordijck, T. Odstrčil, T. Osborne, T.L. Rhodes, F. Scotti, Z. Yan, L. Zeng, J. Damba, F. Laggner, S. Haskey, B. Grierson, J. Chen, S. Saarelma, A. Pankin
Publikováno v:
Nuclear Fusion, Vol 64, Iss 8, p 086010 (2024)
The edge localized mode (ELM) frequency ( f _ELM ) decreased by 63% when electron cyclotron heating (ECH) deposition location is shifted from ρ = 0.4 to ρ = 0.8 in DIII-D discharges where the power ratio between neutral beam injection (NBI) and ECH
Externí odkaz:
https://doaj.org/article/ffa116f6419b43c2b6bd120f5a97f15c
Autor:
H.Q. Wang, R. Hong, X. Jian, T.L. Rhodes, H.Y. Guo, A.W. Leonard, X. Ma, J.G. Watkins, J. Ren, B.A. Grierson, M.W Shafer, F. Scotti, T.H. Osborne, D.M. Thomas, Z. Yan
Publikováno v:
Nuclear Fusion, Vol 63, Iss 8, p 084002 (2023)
The integration of a high-performance core and a dissipative divertor, or the so-called ‘core–edge integration,’ has been widely identified as a critical gap in the design of future fusion reactors. In this letter, we report, for the first time
Externí odkaz:
https://doaj.org/article/bbf9c234eaf04c6fa854d09a4273de67
Autor:
R. Hong, T.L. Rhodes, P.H. Diamond, Y. Ren, L. Zeng, X. Jian, K. Barada, G. Wang, W.A. Peebles
Publikováno v:
Nuclear Fusion, Vol 63, Iss 10, p 104001 (2023)
We report on the observation of spatially asymmetric turbulent structures with a long radial correlation length in the core of high-collisionality H -mode plasmas on DIII-D tokamak. These turbulent structures develop from shorter wavelength turbulenc
Externí odkaz:
https://doaj.org/article/e1843eb6395c44a2b0b4497e8e2fad30
Autor:
Q. Pratt, V. Hall-Chen, T.F. Neiser, R. Hong, J. Damba, T.L. Rhodes, K.E. Thome, J. Yang, S.R. Haskey, T. Cote, T. Carter
Publikováno v:
Nuclear Fusion, Vol 64, Iss 1, p 016001 (2023)
Measurements of the turbulent density wavenumber spectrum, $\delta \hat{n}_e(k_\perp)$ , using the Doppler Back-Scattering (DBS) diagnostic are reported from DIII-D H-mode plasmas with electron cyclotron heating as the only auxiliary heating method.
Externí odkaz:
https://doaj.org/article/38cdd1b2bf1c4086a5601a8d53a5621d
Autor:
M.W. Brookman, L.A. Holland, M.B. Thomas, M.E. Austin, K. Barada, K.W. Gentle, R.J. La Haye, J.B. Leddy, C.C. Petty, T.L. Rhodes, Z. Yan, R.G.L. Vann, A. Köhn-Seemann
Publikováno v:
Nuclear Fusion, Vol 63, Iss 4, p 044001 (2023)
We have demonstrated for the first time that turbulent plasma density fluctuations in the edge of the DIII-D tokamak are responsible for substantial broadening of an injected microwave beam by successful quantitative comparison between experimental o
Externí odkaz:
https://doaj.org/article/702d14a9150d44dfb5f6a0e8089b5339
Autor:
J. Chen, X. Jian, D.L. Brower, S.R. Haskey, Z. Yan, R. Groebner, H.Q. Wang, T.L. Rhodes, F. Laggner, W. Ding, K. Barada, S. Banerjee
Publikováno v:
Nuclear Fusion, Vol 63, Iss 6, p 066019 (2023)
A new, comprehensive set of evidence reveals that Micro-Tearing Modes (MTMs) dominate pedestal electron heat transport in an H-mode experiment in the DIII-D tokamak. The experiment investigates the role of MTMs by scanning pedestal collisionality, a
Externí odkaz:
https://doaj.org/article/5066adc129cd463bb47ae80726b81b95
Autor:
L. Schmitz, R.S. Wilcox, D. Shiraki, T.L. Rhodes, Z. Yan, G.R. McKee, K.J. Callahan, C. Chrystal, S.R. Haskey, Y.Q. Liu, F. Laggner, L. Zeng, T.H. Osborne, B.A. Grierson, C. Paz-Soldan, N. Leuthold, B.C. Lyons, P. Gohil, C.C. Petty
Publikováno v:
Nuclear Fusion. 62:126050
Recent dedicated DIII-D experiments in low-torque, ITER-similar-shape (ISS) hydrogen plasmas (at a plasma current I p ∼ 1.5 MA and ITER-similar edge safety factor q 95 ∼ 3.6) show that the L-H transition power threshold P LH can be reduced substa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1427c23d399f9887eeaa2203c5a707b3
https://doi.org/10.1088/1741-4326/ac94e1
https://doi.org/10.1088/1741-4326/ac94e1
Autor:
E.J. Doyle (Chair Transport Physics), W.A. Houlberg (Chair Confinement Da Modelling), Y. Kamada (Chair Pedestal and Edge), V. Mukhovatov (co-Chair Transport Physics), T.H. Osborne (co-Chair Pedestal and Edge), A. Polevoi (co-Chair Confinement Da Modelling), G Bateman, J.W Connor, J.G. Cordey (retired), T Fujita, X Garbet, T.S Hahm, L.D Horton, A.E Hubbard, F Imbeaux, F Jenko, J.E Kinsey, Y Kishimoto, J Li, T.C Luce, Y Martin, M Ossipenko, V Parail, A Peeters, T.L Rhodes, J.E Rice, C.M Roach, V Rozhansky, F Ryter, G Saibene, R Sartori, A.C.C Sips, J.A Snipes, M Sugihara, E.J Synakowski, H Takenaga, T Takizuka, K Thomsen, M.R Wade, H.R Wilson, ITPA Transport Physics Topical Group, ITPA Confinement Database and Model Group, ITPA Pedestal and Edge Topical Group
Publikováno v:
Nuclear Fusion. 47:S18-S127
The understanding and predictive capability of transport physics and plasma confinement is reviewed from the perspective of achieving reactor-scale burning plasmas in the ITER tokamak, for both core and edge plasma regions. Very considerable progress
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8c645bb74b360901e9d1d0ab177bfc7
https://doi.org/10.1088/0029-5515/47/6/s02
https://doi.org/10.1088/0029-5515/47/6/s02
Autor:
T.L. Rhodes, C. X. Yu, E. J. Doyle, M. Gilmore, R. A. Moyere, P. A. Politzer, Max E Austin, Todd Evans, G. R. McKee
Publikováno v:
Physics of Plasmas. 9:1962-1969
One mechanism for transport of energy and particles in a plasma is by discrete, intermittent, uncorrelated events, often called avalanches. This paper reports observations and quantitative characterization of avalanche events in a magnetically confin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a724dd9a45b0abb00ff5eec78c3fdb6
https://doi.org/10.1063/1.1452730
https://doi.org/10.1063/1.1452730