K
Kevin Tritz
Researcher at Johns Hopkins University
Publications - 109
Citations - 2786
Kevin Tritz is an academic researcher from Johns Hopkins University. The author has contributed to research in topics: Divertor & Plasma. The author has an hindex of 26, co-authored 106 publications receiving 2471 citations.
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Journal ArticleDOI
Overview of the physics and engineering design of NSTX upgrade
Jonathan Menard,S.P. Gerhardt,M.G. Bell,J.M. Bialek,A. Brooks,John Canik,J. Chrzanowski,M. Denault,L. Dudek,D.A. Gates,Nikolai Gorelenkov,W. Guttenfelder,R. Hatcher,J. Hosea,Robert Kaita,Stanley Kaye,C.E. Kessel,Egemen Kolemen,H.W. Kugel,R. Maingi,M. Mardenfeld,D. Mueller,B. A. Nelson,C. Neumeyer,M. Ono,E. Perry,R. Ramakrishnan,R. Raman,Yang Ren,S. Sabbagh,M. Smith,Vlad Soukhanovskii,T. Stevenson,R. Strykowsky,Dan Stutman,G. Taylor,Peter Titus,K. Tresemer,Kevin Tritz,M. Viola,M. Williams,R. Woolley,Howard Yuh,Han Zhang,Yuhu Zhai,A. Zolfaghari +45 more
TL;DR: The National Spherical Torus eXperiment (NSTX) is a MA-class spherical tokamak (ST) facility in the US actively developing the physics basis for an ST-based FNSF as discussed by the authors.
Journal ArticleDOI
Resistive wall stabilized operation in rotating high beta NSTX plasmas
Steven Sabbagh,Aaron Sontag,J.M. Bialek,D.A. Gates,Alan H. Glasser,Jonathan Menard,W. Zhu,M.G. Bell,R. E. Bell,Anders Bondeson,C.E. Bush,James D. Callen,Ming-Sheng Chu,Chris Hegna,Stanley Kaye,L.L. Lao,B.P. LeBlanc,Yueqiang Liu,R. Maingi,D. Mueller,Ker-Chung Shaing,Dan Stutman,Kevin Tritz,Cheng Zhang +23 more
TL;DR: In this article, resistive wall mode (RWM) physics is studied to understand mode stabilization in high toroidal and normalized plasma beta, and βN ≡ 10 8 ǫ aB0/Ip through boundary and profile optimization.
Journal ArticleDOI
Active stabilization of the resistive-wall mode in high-beta, low-rotation plasmas.
Steven Sabbagh,R. E. Bell,Jonathan Menard,D.A. Gates,Aaron Sontag,J.M. Bialek,B.P. LeBlanc,Fred Levinton,Kevin Tritz,Howard Yuh +9 more
TL;DR: The resistive-wall mode is actively stabilized in the National Spherical Torus Experiment in high-beta plasmas rotating significantly below the critical rotation speed for passive stability and in the range predicted for the International Thermonuclear Experimental Reactor.
Journal ArticleDOI
Advances in global MHD mode stabilization research on NSTX
Steven Sabbagh,John Berkery,R.E. Bell,J.M. Bialek,S.P. Gerhardt,Jonathan Menard,Riccardo Betti,D.A. Gates,B. Hu,O. Katsuro-Hopkins,B.P. LeBlanc,Fred Levinton,J. Manickam,Kevin Tritz,Howard Yuh +14 more
TL;DR: In this article, the stability of resistive wall modes and global kink/ballooning modes was investigated under active control. But the authors focused on the non-resonant n = 1 mode, and not on the n = 3 mode.
Journal ArticleDOI
Confinement and local transport in the National Spherical Torus Experiment (NSTX)
Stanley Kaye,Fred Levinton,Dan Stutman,Kevin Tritz,Howard Yuh,M.G. Bell,R. E. Bell,Calvin Domier,D.A. Gates,Wendell Horton,Juhyung Kim,B.P. LeBlanc,Neville C. Luhmann,R. Maingi,E. Mazzucato,Jonathan Menard,D. R. Mikkelsen,D. Mueller,Hyeon K. Park,G. Rewoldt,S.A. Sabbagh,David R. Smith,W. X. Wang +22 more
TL;DR: In this paper, the NSTX plasmas are heated by up to 7 MW of deuterium neutral beams with preferential electron heating as expected for ITER, and a strong increase in confinement with decreasing collisionality and a weak degradation with beta.