R
R. A. Langley
Researcher at Oak Ridge National Laboratory
Publications - 48
Citations - 539
R. A. Langley is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Tokamak & Plasma. The author has an hindex of 13, co-authored 48 publications receiving 527 citations.
Papers
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Journal ArticleDOI
Confinement improvement in beam heated ISX-B discharges with low-z impurity injection
E. A. Lazarus,J.D. Bell,C.E. Bush,A. Carnevali,J.L. Dunlap,P.H. Edmonds,L.C. Emerson,O. C. Eldridge,W. L. Gardner,H.C. Howe,D. P. Hutchinson,R.R. Kindsfather,R.C. Isler,R. A. Langley,Cheng Ma,P.K. Mioduszewski,M. Murakami,L.E. Murray,G. H. Neilson,V.K. Paré,S.D. Scott,D.J. Sigmar,J. E. Simpkins,K.A. Stewart,C. E. Thomas,R.M. Wieland,John B Wilgen,A. L. Wintenberg,W.R. Wing,Alan J Wootton +29 more
TL;DR: In this article, the Impurity Study Experiment (ISX-B) neutral beam heated plasmas when a small amount of neon is injected shortly after the start of beam heating was investigated.
Journal ArticleDOI
The beryllium limiter experiment in isx-b
P.K. Mioduszewski,P.H. Edmonds,C.E. Bush,A. Carnevali,R. E. Clausing,T.B. Cook,L.C. Emerson,A.C. England,W.A. Gabbard,L. Heatherly,D. P. Hutchinson,R.C. Isler,R.R. Kindsfather,P.W. King,R. A. Langley,E. A. Lazarus,C. H. Ma,M. Murakami,G.H. Neilson,James B. Roberto,J. E. Simpkins,C. E. Thomas,Alan J Wootton,K. Yokoyama,R.A. Zuhr,K.H. Behringer,J. G. Dietz,E. Källne,P. J. Lomas,P.D. Morgan,P.E. Stott,A. Tanga,K.H. Sonnenberg,M.F. Smith,J.G. Watkins,R. D. Watson,J.B. Whitley,D.H.J. Goodall,N. J. Peacock,R. B. Clayton,J. von Seggern,K.G. Tschersich +41 more
TL;DR: In this paper, an experiment to test beryllium as a limiter material has been performed in the ISX-B tokamak and the effect of the limiter on the plasma were studied in detail.
Journal ArticleDOI
Hydrogen trapping, diffusion and recombination in austenitic stainless steels
TL;DR: In this paper, a two-region diffusion model with surface recombination is proposed, in which the surface layer is characterized by a smaller diffusion coefficient than the bulk, and the two regions are modeled separately.
Journal ArticleDOI
Particle removal with pump limiters in ISX-B
P.K. Mioduszewski,L.C. Emerson,J. E. Simpkins,Alan J Wootton,C.E. Bush,A. Carnevali,J.L. Dunlap,P.H. Edmonds,W. L. Gardner,H.C. Howe,D. P. Hutchinson,R.C. Isler,R.R. Kindsfather,R. A. Langley,E. A. Lazarus,Cheng Ma,M. Murakami,G. H. Neilson,V.K. Paré,S.D. Scott,C. E. Thomas,J.B. Whitley,W.R. Wing,K. E. Yokoyama +23 more
TL;DR: In this paper, two pump limiter modules were installed in the top and bottom of one toroidal sector of the tokamak to demonstrate the effect of the pump limiters on the plasma density, which is defined as the removed particle flux divided by the total particle flux in the scrape-off layer.
Journal ArticleDOI
Rotation scalings and momentum confinement in neutral-beam-injected ISX-B plasmas
R.C. Isler,Alan J Wootton,L.E. Murray,R. A. Langley,J.D. Bell,C.E. Bush,A. Carnevali,P.H. Edmonds,D. P. Hutchinson,R.R. Kindsfather,E. A. Lazarus,Cheng Ma,J.K. Munro,M. Murakami,G. H. Neilson,S.D. Scott,C. E. Thomas +16 more
TL;DR: In this paper, the scaling of the central rotation in non-gettered, co-injected ISX-B discharges has been measured as a function of beam power, electron density and plasma current.