G
G. L. Schmidt
Researcher at Princeton Plasma Physics Laboratory
Publications - 7
Citations - 1060
G. L. Schmidt is an academic researcher from Princeton Plasma Physics Laboratory. The author has contributed to research in topics: Tokamak Fusion Test Reactor & Magnetic confinement fusion. The author has an hindex of 6, co-authored 7 publications receiving 1028 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
Turbulent Fluctuations in TFTR Configurations with Reversed Magnetic Shear.
E. Mazzucato,S. H. Batha,Michael A. Beer,M.G. Bell,R. E. Bell,Robert Budny,C.E. Bush,T.S. Hahm,Gregory W. Hammett,Fred Levinton,Raffi Nazikian,Hyeon K. Park,G. Rewoldt,G. L. Schmidt,E. J. Synakowski,William Tang,G. Taylor,M. C. Zarnstorff +17 more
TL;DR: Turbulent fluctuations in plasmas with reversed magnetic shear investigated on the Tokamak Fusion Test Reactor are found to be consistent with the suppression of turbulence by the E x B velocity shear.
Journal ArticleDOI
Roles of Electric Field Shear and Shafranov Shift in Sustaining High Confinement in Enhanced Reversed Shear Plasmas on the TFTR Tokamak
E. J. Synakowski,S. H. Batha,Michael A. Beer,M.G. Bell,R. E. Bell,Robert Budny,C. E. Bush,P. C. Efthimion,Gregory W. Hammett,T.S. Hahm,B.P. LeBlanc,F. M. Levinton,E. Mazzucato,Hyeon K. Park,A. T. Ramsey,G. Rewoldt,S. D. Scott,G. L. Schmidt,William Tang,G. Taylor,M. C. Zarnstorff +20 more
TL;DR: In this article, the relaxation of core transport barriers in TFTR enhanced reversed shear plasmas has been studied by varying the radial electric field using different applied torques from neutral beam injection.
Journal ArticleDOI
Local transport barrier formation and relaxation in reverse-shear plasmas on the Tokamak Fusion Test Reactor
E. J. Synakowski,S. H. Batha,Michael A. Beer,M.G. Bell,R. E. Bell,Robert Budny,C. E. Bush,P. C. Efthimion,T.S. Hahm,Gregory W. Hammett,B.P. LeBlanc,F. M. Levinton,E. Mazzucato,Hyeon K. Park,A. T. Ramsey,G. L. Schmidt,G. Rewoldt,S. D. Scott,G. Taylor,M. C. Zarnstorff +19 more
TL;DR: In this paper, the roles of turbulence stabilization by sheared E×B flow and Shafranov shift gradients are examined for Tokamak Fusion Test Reactor [D. J. Grove and D. M. Meade, Nucl. Fusion 25, 1167 (1985)] enhanced reverse-shear (ERS) plasmas.
Journal ArticleDOI
Effects of boronization of the first wall in TFTR
H. F. Dylla,M.G. Bell,R.J. Hawryluk,K. W. Hill,S.J. Kilpatrick,P. H. LaMarche,M. Leonard,Dennis M. Manos,D. Mueller,D.K. Owens,C.S. Pitcher,A. T. Ramsey,G. L. Schmidt,S. D. Scott,M. Ulrickson,M. C. Zarnstorff +15 more
TL;DR: In this article, a plasma-enhanced CVD process was used to deposit thin amorphous carbon/boron films onto the first wall of TFTR and a series of plasma experiments was performed to test the effect of this first-wall modification on low-Z impurity (carbon, oxygen) behavior, suppression of metallic impurities, post-disruption recovery, hydrogenic recycling, and plasma density limits.