Z
Z. Chang
Researcher at Princeton Plasma Physics Laboratory
Publications - 3
Citations - 764
Z. Chang is an academic researcher from Princeton Plasma Physics Laboratory. The author has contributed to research in topics: Tokamak Fusion Test Reactor & Neutral beam injection. The author has an hindex of 3, co-authored 3 publications receiving 736 citations.
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Journal ArticleDOI
Improved confinement with reversed magnetic shear in TFTR.
Fred Levinton,M. C. Zarnstorff,S. H. Batha,M.G. Bell,R. E. Bell,Robert Budny,C.E. Bush,Z. Chang,E.D. Fredrickson,A. Janos,J. Manickam,A. T. Ramsey,S.A. Sabbagh,G. L. Schmidt,E. J. Synakowski,G. Taylor +15 more
TL;DR: In this paper, a new tokamak confinement regime has been observed on the Tokamak Fusion Test Reactor (TFTR), where particle and ion thermal diffusivities drop precipitously by a factor of \ensuremath{\sim}40 to the neoclassical level for the particles and to much less than the NE value for the ions in the region with reversed shear.
Journal ArticleDOI
Alpha-Particle-Driven Toroidal Alfvén Eigenmodes in the Tokamak Fusion Test Reactor
Raffi Nazikian,Guoyong Fu,S. H. Batha,M.G. Bell,R. E. Bell,Robert Budny,C. E. Bush,Z. Chang,Y. Chen,Chio-Zong Cheng,D. S. Darrow,P. C. Efthimion,E.D. Fredrickson,Nikolai Gorelenkov,B.P. LeBlanc,F. M. Levinton,F. M. Levinton,Richard Majeski,E. Mazzucato,S. S. . Medley,S. S. . Medley,Hyeon K. Park,M. P. Petrov,Donald A. Spong,Donald A. Spong,J. D. Strachan,E. J. Synakowski,G. Taylor,S. von Goeler,S. von Goeler,Roscoe White,K. L. Wong,S. J. Zweben +32 more
TL;DR: In this paper, α-particle-driven toroidal Alfven eigenmodes (TAEs) were observed for the first time in deuterium-tritium (D-T) plasmas on the tokamak fusion test reactor (TFTR).
Journal ArticleDOI
Stability analysis of toroidicity-induced Alfvén eigenmodes in TFTR deuterium-tritium experiments.
Guoyong Fu,Chio-Zong Cheng,Robert Budny,Z. Chang,D. S. Darrow,E.D. Fredrickson,E. Mazzucato,Raffi Nazikian,Stewart Zweben +8 more
TL;DR: The toroidicity-induced Alfven eigenmodes (TAE) are found to be stable in the Tokamak Fusion Test Reactor (TFTR) deuterium-tritium plasmas and a core localized TAE mode is shown to exist near the center of the plasma at small magnetic shear and finite plasma beta.