J
John Rice
Researcher at Massachusetts Institute of Technology
Publications - 127
Citations - 4771
John Rice is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Alcator C-Mod & Tokamak. The author has an hindex of 41, co-authored 127 publications receiving 4475 citations.
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Journal ArticleDOI
Inter-machine comparison of intrinsic toroidal rotation in tokamaks
John Rice,A. Ince-Cushman,J.S. deGrassie,L.-G. Eriksson,Yoshiteru Sakamoto,A. Scarabosio,Alessandro Bortolon,Keith H. Burrell,B. P. Duval,C. Fenzi-Bonizec,Martin Greenwald,R. J. Groebner,G. T. Hoang,Yoshihiko Koide,Earl Marmar,A. Pochelon,Y. Podpaly +16 more
TL;DR: In this article, the intrinsic rotation velocity has been found to increase with plasma stored energy or pressure in JET, Alcator C-Mod, Tore Supra, DIII-D, JT-60U and TCV, and to decrease with increasing plasma current in some of these cases.
Journal ArticleDOI
Characterization of enhanced Dα high-confinement modes in Alcator C-Mod
Martin Greenwald,R.L. Boivin,P.T. Bonoli,R. Budny,C.L. Fiore,J.A. Goetz,Robert Granetz,Amanda Hubbard,Ian H. Hutchinson,James Irby,Brian LaBombard,Yijun Lin,Bruce Lipschultz,Earl Marmar,A. Mazurenko,D. A. Mossessian,T. Sunn Pedersen,C. S. Pitcher,Miklos Porkolab,John Rice,William L. Rowan,J.A. Snipes,G. Schilling,Yuichi Takase,J.L. Terry,S.M. Wolfe,J. L. Weaver,B. Welch,S.J. Wukitch +28 more
TL;DR: In this article, the edge gradients in EDA seem to be relaxed by a continuous process rather than an intermittent one as is the case for standard ELMy discharges and thus do not present the first wall with large periodic heat loads.
Journal ArticleDOI
Role of trapped electron mode turbulence in internal transport barrier control in the Alcator C-Mod Tokamak
D.R. Ernst,P.T. Bonoli,Peter J. Catto,William Dorland,C.L. Fiore,Robert Granetz,Martin Greenwald,Amanda Hubbard,Miklos Porkolab,M. H. Redi,John Rice,K. Zhurovich +11 more
TL;DR: In this paper, nonlinear gyrokinetic simulations of trapped electron mode (TEM) turbulence, within an internal particle transport barrier, are performed and compared with experimental data.
Journal ArticleDOI
Experimental investigation of transport phenomena in the scrape-off layer and divertor
Brian LaBombard,J.A. Goetz,Ian H. Hutchinson,D. Jablonski,Jay Kesner,C. Kurz,Bruce Lipschultz,G.M. McCracken,A. Niemczewski,J. L. Terry,A. J. Allen,R.L. Boivin,F. Bombarda,P.T. Bonoli,C. Christensen,C.L. Fiore,D. T. Garnier,S. Golovato,Robert Granetz,Martin Greenwald,S. Horne,Amanda Hubbard,James Irby,D. Lo,D. Lumma,Earl Marmar,M. J. May,A. Mazurenko,R. Nachtrieb,H. Ohkawa,P. O’Shea,Miklos Porkolab,J. Reardon,John Rice,J. C. Rost,J. Schachter,J.A. Snipes,J. Sorci,P. Stek,Yuichi Takase,Y. Wang,R. Watterson,J.L. Weaver,B. Welch,Scot A. Wolfe +44 more
TL;DR: In this paper, the authors investigated the divertor and scrape-off layer of Alcator C-Mod for a wide range of plasma conditions, including low recycling, high-recycling, and detached regimes, and reversed divertor flows.
Journal ArticleDOI
Observations of central toroidal rotation in ICRF heated Alcator C-Mod plasmas
John Rice,Martin Greenwald,Ian H. Hutchinson,Earl Marmar,Yuichi Takase,S.M. Wolfe,F. Bombarda +6 more
TL;DR: In this article, the Doppler shifts of argon X ray lines were used to estimate the central impurity toroidal rotation in the center of Alcator C-Mod ion cyclotron range of frequencies (ICRF) heated plasmas.