D
D. W. Roberts
Researcher at Princeton Plasma Physics Laboratory
Publications - 8
Citations - 621
D. W. Roberts is an academic researcher from Princeton Plasma Physics Laboratory. The author has contributed to research in topics: Plasma diagnostics & Stark effect. The author has an hindex of 6, co-authored 8 publications receiving 604 citations.
Papers
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Journal ArticleDOI
Magnetic field pitch-angle measurments in the PBX-M tokamak using the motional Stark effect.
TL;DR: Polarimetry measurements of the Doppler-shifted H{sub {alpha}} emission from a neutral hydrogen beam on the PBX-M tokamak have been employed in a novel technique for obtaining {ital q}({ital r}) and magnetic field pitch-angle profiles using the Stark effect.
Journal ArticleDOI
Fusion power production from TFTR plasmas fueled with deuterium and tritium
J. D. Strachan,H. Adler,P. Alling,C. Ancher,H. Anderson,J.L. Anderson,D. Ashcroft,Cris W. Barnes,G. Barnes,S. H. Batha,M. G. Bell,R.E. Bell,Manfred Bitter,W. R. Blanchard,N. L. Bretz,Robert Budny,C.E. Bush,R. Camp,M. Caorlin,S. Cauffman,Z. Chang,Chio-Zong Cheng,J. Collins,G. Coward,D. S. Darrow,J. DeLooper,H.H. Duong,L. Dudek,R. Durst,P. C. Efthimion,D.R. Ernst,R. K. Fisher,R. J. Fonck,E.D. Fredrickson,N. Fromm,Guoyong Fu,Harold P. Furth,C. Gentile,N. N. Gorelenkov,B. Grek,L. R. Grisham,Gregory W. Hammett,G. R. Hanson,R. J. Hawryluk,William Heidbrink,H. W. Herrmann,K. W. Hill,J. Hosea,H. Hsuan,A.C. Janos,D. L. Jassby,F. C. Jobes,David W. Johnson,L. C. Johnson,J. H. Kamperschroer,H.W. Kugel,N. T. Lam,P. H. LaMarche,Michael Loughlin,B.P. LeBlanc,M. Leonard,Fred Levinton,J. Machuzak,D.K. Mansfield,A. Martin,E. Mazzucato,Richard Majeski,E.S. Marmar,J.M. McChesney,B. McCormack,D.C. McCune,K. M. McGuire,G. R. McKee,Dale Meade,S. S. Medley,D. R. Mikkelsen,D. Mueller,M. Murakami,A. Nagy,Raffi Nazikian,R. Newman,Takeo Nishitani,M. Norris,T. O’Connor,M. Oldaker,Masaki Osakabe,D. K. Owens,Hyeon K. Park,W. Park,S.F. Paul,G. Pearson,E. Perry,M. P. Petrov,C. K. Phillips,S. Pitcher,A. T. Ramsey,David A Rasmussen,M. H. Redi,D. W. Roberts,J. H. Rogers,R. Rossmassler,A. L. Roquemore,E. Ruskov,S.A. Sabbagh,Mamiko Sasao,G. Schilling,J.F. Schivell,G. L. Schmidt,S. D. Scott,R. Sissingh,C.H. Skinner,Joseph Snipes,J. E. Stevens,T. Stevenson,B. C. Stratton,E. J. Synakowski,William Tang,G. Taylor,J. L. Terry,M. E. Thompson,M. Tuszewski,C. Vannoy,A. von Halle,S. von Goeler,D. Voorhees,R. T. Walters,R. M. Wieland,John B Wilgen,M. Williams,James R. Wilson,K. L. Wong,G. A. Wurden,Masaaki Yamada,Kenneth M. Young,M. C. Zarnstorff,S. J. Zweben +135 more
TL;DR: The measured loss rate of energetic alpha particles agreed with the approximately 5% losses expected from alpha particles which are born on unconfined orbits.
Journal ArticleDOI
Confinement and heating of a deuterium-tritium plasma.
R. J. Hawryluk,H. Adler,P. Alling,C. Ancher,H. Anderson,J.L. Anderson,D. Ashcroft,Cris W. Barnes,G. Barnes,S. H. Batha,M. G. Bell,R.E. Bell,Manfred Bitter,W. R. Blanchard,N. L. Bretz,R.V. Budny,C.E. Bush,R. Camp,M. Caorlin,S. Cauffman,Z. Chang,Chio-Zong Cheng,J. Collins,G. Coward,D. S. Darrow,J. DeLooper,H.H. Duong,L. Dudek,R. Durst,P. C. Efthimion,D.R. Ernst,R. K. Fisher,R. J. Fonck,E.D. Fredrickson,N. Fromm,Guoyong Fu,Harold P. Furth,C. Gentile,N. N. Gorelenkov,B. Grek,L. R. Grisham,Gregory W. Hammett,G. R. Hanson,William Heidbrink,H. W. Herrmann,K. W. Hill,J. Hosea,H. Hsuan,A.C. Janos,D. L. Jassby,F. C. Jobes,David W. Johnson,L. C. Johnson,J. H. Kamperschroer,H.W. Kugel,N. T. Lam,P. H. LaMarche,Michael Loughlin,B.P. LeBlanc,M. Leonard,Fred Levinton,J. Machuzak,D.K. Mansfield,A. Martin,E. Mazzucato,Richard Majeski,E.S. Marmar,J.M. McChesney,B. McCormack,D.C. McCune,K. M. McGuire,G. R. McKee,Dale Meade,S. S. Medley,D. R. Mikkelsen,D. Mueller,M. Murakami,A. Nagy,Raffi Nazikian,R. Newman,Takeo Nishitani,M. Norris,T. O’Connor,M. Oldaker,Masaki Osakabe,D. K. Owens,Hyeon K. Park,W. Park,S.F. Paul,G. Pearson,E. Perry,M. P. Petrov,C. K. Phillips,S. Pitcher,A. T. Ramsey,David A Rasmussen,M. H. Redi,D. W. Roberts,J. H. Rogers,R. Rossmassler,A. L. Roquemore,E. Ruskov,S.A. Sabbagh,Mamiko Sasao,G. Schilling,J.F. Schivell,G. L. Schmidt,S. D. Scott,R. Sissingh,C.H. Skinner,Joseph Snipes,J. E. Stevens,T. Stevenson,B. C. Stratton,J. D. Strachan,E. J. Synakowski,William Tang,G. Taylor,J.L. Terry,M. E. Thompson,M. Tuszewski,C. Vannoy,A. von Halle,S. von Goeler,D. Voorhees,R. T. Walters,R. M. Wieland,John B Wilgen,M. Williams,James R. Wilson,K. L. Wong,G. A. Wurden,Masaaki Yamada,Kenneth M. Young,M. C. Zarnstorff,Stewart Zweben +135 more
TL;DR: Improvements in confinement associated with the use of tritium and possibly heating of electrons by α-particles are indicated.
Journal ArticleDOI
Magnetic field pitch angle diagnostic using the motional Stark effect (invited)
TL;DR: In this article, the motional Stark effect was employed in a novel technique for obtaining the pitch angle profile and q(r) using polarimetry measurements of the Doppler shifted Hα emission from a hydrogen diagnostic neutral beam.
Journal ArticleDOI
The PBX-M 80 kV neutral probe beam
H.W. Kugel,Robert Kaita,G. M. Gammel,T. A. Kozub,D. W. Roberts,J.R. Coupland,I.L.S. Gray,J.W. Mepham +7 more
TL;DR: The PBX-M Neutral Probe Beam Project was initiated to design, fabricate, acceptance-test, install, and commission an 80 kV, 2.7 GHz neutral probe beam for use in q-profile measurements as discussed by the authors.