K
K. Tritz
Researcher at University of Wisconsin-Madison
Publications - 34
Citations - 911
K. Tritz is an academic researcher from University of Wisconsin-Madison. The author has contributed to research in topics: Plasma & Tokamak. The author has an hindex of 14, co-authored 34 publications receiving 853 citations.
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Journal ArticleDOI
The beam emission spectroscopy diagnostic on the DIII-D tokamak
George McKee,Robert P. Ashley,R. Durst,R. J. Fonck,M. W. Jakubowski,K. Tritz,Keith H. Burrell,C. M. Greenfield,John Robinson +8 more
TL;DR: A beam emission spectroscopy system has been installed on DIII-D to provide localized density fluctuation measurements for longwavelength turbulent modes with k⩽3 cm−1 which are typically associated with anomalous radial transport.
Journal ArticleDOI
Collective fast ion instability-induced losses in National Spherical Tokamak Experiment
E.D. Fredrickson,R.E. Bell,D. S. Darrow,Guoyong Fu,N. N. Gorelenkov,B.P. LeBlanc,S. S. Medley,J.E. Menard,Hae-Woong Park,A. L. Roquemore,William Heidbrink,S.A. Sabbagh,Dan Stutman,K. Tritz,Neal Crocker,S. Kubota,W. A. Peebles,K. C. Lee,Fred Levinton +18 more
TL;DR: A wide variety of fast ion driven instabilities are excited during neutral beam injection (NBI) in the National Spherical Torus Experiment (NSTX) [Nucl. Fusion 39, 2137 (1999)] and NSTX is comparable as discussed by the authors.
Journal ArticleDOI
Transport and performance in DIII-D discharges with weak or negative central magnetic shear
C. M. Greenfield,D.P. Schissel,B. W. Stallard,E. A. Lazarus,G.A. Navratil,K. H. Burrell,T.A. Casper,J.C. DeBoo,E. J. Doyle,R.J. Fonck,Cary Forest,P. Gohil,R. J. Groebner,M. W. Jakubowski,L.L. Lao,Masakatsu Murakami,Cc Petty,Curtis L. Rettig,T. L. Rhodes,B. W. Rice,H.E. St. John,G. M. Staebler,E. J. Strait,T. S. Taylor,A. D. Turnbull,K. Tritz,R. E. Waltz,Diii-D Team +27 more
TL;DR: In this article, the DIII-D tokamak discharges exhibiting the highest plasma energy and fusion reactivity have been produced by combining the benefits of a hollow or weakly sheared central current profile with a high confinement (H-mode) edge.
Journal ArticleDOI
Correlation between electron transport and shear Alfvén activity in the National Spherical Torus Experiment.
Dan Stutman,L. F. Delgado-Aparicio,N. N. Gorelenkov,Michael Finkenthal,E.D. Fredrickson,S.M. Kaye,E. Mazzucato,K. Tritz +7 more
TL;DR: The first theoretical assessment of a GAE-electron transport connection indicates that overlapping modes can resonantly couple to the bulk thermal electrons and induce their stochastic diffusion.
Journal ArticleDOI
High harmonic fast wave heating efficiency enhancement and current drive at longer wavelength on the National Spherical Torus Experimenta)
J. Hosea,R.E. Bell,B.P. LeBlanc,C. K. Phillips,G. Taylor,E. J. Valeo,James R. Wilson,E. F. Jaeger,P.M. Ryan,John B Wilgen,Howard Yuh,Fred Levinton,S.A. Sabbagh,K. Tritz,Jeffrey B. Parker,P.T. Bonoli,R. W. Harvey,Nstx-U Team +17 more
TL;DR: Ono et al. as discussed by the authors reported an increase in core heating efficiency from 44% to 65% by moving the location of the onset density for perpendicular fast wave propagation away from the antenna face and wall, and hence reducing the propagation surface wave fields.