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A.W. Howald
Researcher at General Atomics
Publications - 3
Citations - 204
A.W. Howald is an academic researcher from General Atomics. The author has contributed to research in topics: DIII-D & Plasma. The author has an hindex of 3, co-authored 3 publications receiving 200 citations.
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Journal ArticleDOI
Higher Fusion Power Gain with Current and Pressure Profile Control in Strongly Shaped DIII-D Tokamak Plasmas.
E. A. Lazarus,G.A. Navratil,C. M. Greenfield,E. J. Strait,Max E Austin,K. H. Burrell,T.A. Casper,D.R. Baker,J.C. DeBoo,E. J. Doyle,R. Durst,J.R. Ferron,Cary Forest,P. Gohil,R. J. Groebner,William Heidbrink,R.M. Hong,Wayne A Houlberg,A.W. Howald,C. L. Hsieh,A.W. Hyatt,G.L. Jackson,J.S. Kim,L.L. Lao,C.J. Lasnier,Anthony Leonard,J.M. Lohr,R.J. La Haye,R. Maingi,R. L. Miller,M. Murakami,T.H. Osborne,L.J. Perkins,Cc Petty,Curtis L. Rettig,T. L. Rhodes,B. W. Rice,S.A. Sabbagh,D.P. Schissel,J. T. Scoville,R. T. Snider,G. M. Staebler,B. W. Stallard,R.D. Stambaugh,H.E. St. John,R. E. Stockdale,P. L. Taylor,Daniel Thomas,A. D. Turnbull,M. R. Wade,R. D. Wood,D.G. Whyte +51 more
TL;DR: Fusion power has been increased by a factor of 3 in DIII-D by tailoring the pressure profile to avoid the kink instability in H-mode plasmas by controlling the plasma pressure profile width.
Journal ArticleDOI
Higher fusion power gain with profile control in DIII-D tokamak plasmas
E. A. Lazarus,E. A. Lazarus,Gerald Navratil,C. M. Greenfield,E. J. Strait,Max E Austin,K. H. Burrell,T.A. Casper,D.R. Baker,J.C. DeBoo,E. J. Doyle,R.D. Durst,J.R. Ferron,Cary Forest,P. Gohil,R. J. Groebner,William Heidbrink,R.M. Hong,A.W. Howald,C L Hsieh,A.W. Hyatt,G.L. Jackson,J.S. Kim,L.L. Lao,C.J. Lanier,Anthony Leonard,J.M. Lohr,R.J. La Haye,Rajesh Maingi,R.L. Miller,M. Murakami,Tom Osborne,L.J. Perkins,C.C. Petty,Curtis L. Rettig,T.L. Rhodes,B. W. Rice,S.A. Sabbagh,D.P. Schissel,J. T. Scoville,R. T. Snider,B. W. Stallard,R.D. Stambaugh,H.E. St. John,R. E. Stockdale,P.L. Taylor,T. S. Taylor,Daniel Thomas,Alan Turnbull,M. R. Wade,R. D. Wood,D.G. Whye +51 more
TL;DR: In this paper, strong shaping, favorable for stability and improved energy confinement, together with a significant expansion of the central region of improved confinement in negative central magnetic shear target plasmas, increased the maximum fusion power produced in DIII-D by a factor of 3.
Journal ArticleDOI
Divertor heat and particle control experiments on the DIII-D tokamak
M.A. Mahdavi,S. L. Allen,D.R. Baker,B. Bastasz,N.H. Brooks,D.A. Buchenauer,R.B. Campbell,J.W. Cuthbertson,Todd Evans,M.E. Fenstermacher,D. F. Finkenthal,J. Foote,D. N. Hill,D.L. Hillis,F L Hinton,J.T. Hogan,A.W. Howald,A.W. Hyatt,G.L. Jackson,R. Jong,S. Konoshima,C.J. Lasnier,Anthony Leonard,S.I. Lippmann,R. Maingi,M. M. Menon,P.K. Mioduszewski,R.A. Moyer,H. Ogawa,T.W. Petrie,G. D. Porter,M.E. Rensink,T.D. Rognlein,M.J. Schaffer,K.M. Schaubel,D.L. Sevier,J. Smith,G. M. Staebler,G. T. Sager,R.D. Stambaugh,Daniel Thomas,M. R. Wade,J.G. Watkins,F. Weschenfelder,W. P. West,Dennis Whyte,J. Winter,C.P.C. Wong,R. D. Wood +48 more
TL;DR: A summary of recent DIII-D divertor physics activity and plans for future divertor upgrades can be found in this paper, where the divertor heat flux control by means of D 2 gas puffing and impurity injection were studied separately and in both cases up to a factor of five reduction of the diveror peak heat flux was observed.