R
Richard E. Nygren
Researcher at Sandia National Laboratories
Publications - 97
Citations - 2381
Richard E. Nygren is an academic researcher from Sandia National Laboratories. The author has contributed to research in topics: Divertor & Heat flux. The author has an hindex of 23, co-authored 97 publications receiving 2156 citations.
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Journal ArticleDOI
High heat flux tests on heat sinks armored with tungsten rods
TL;DR: In this paper, the results of high heat flux tests at Sandia National Laboratories of mock-ups armored with W rods embedded in water-cooled copper-alloy heat sinks were presented.
Journal ArticleDOI
Thermal control of the liquid lithium divertor for NSTX
Richard E. Nygren,H. Charles Harjes,Peter Wakeland,Robert Ellis,H.W. Kugel,Robert Kaita,L. Berzak,Leonid E. Zakharov,Brian Ehrhart +8 more
TL;DR: The liquid lithium divertoron (LLD) as mentioned in this paper has four toroidal panels, each a conical section inclined at 22° like the previous graphite divertor tiles.
Thermal Control of the Liquid Lithium Divertor for NSTX (poster).
Richard E. Nygren,Henry C. Harjes,Peter Wakeland,Robert Ellis,H.W. Kugel,Robert Kaita,L. Berzak,Leonid Zahkarov,Brian Ehrhart +8 more
TL;DR: The liquid lithium divertoron (LLD) as discussed by the authors has four toroidal panels, each a conical section inclined at 22° like the previous graphite divertor tiles.
Journal ArticleDOI
Recent progress of NSTX lithium program and opportunities for magnetic fusion research
M. Ono,M.G. Bell,Robert Kaita,H.W. Kugel,Joon-Wook Ahn,Jean Paul Allain,D. J. Battaglia,R.E. Bell,John Canik,Siye Ding,S.P. Gerhardt,T.K. Gray,W. Guttenfelder,J. Hosea,Michael Jaworski,J. Kallman,S.M. Kaye,B.P. LeBlanc,Rajesh Maingi,D.K. Mansfield,Adam McLean,Jonathan Menard,D. Muller,Brian Nelson,Richard E. Nygren,S.F. Paul,Roger Raman,Yang Ren,P.M. Ryan,S.A. Sabbagh,Filippo Scotti,C.H. Skinner,Vlad Soukhanovskii,V. Surla,Chase N. Taylor,J. Timberlake,Howard Yuh,Leonid E. Zakharov +37 more
TL;DR: Lithium wall coating techniques have been experimentally explored on National Spherical Torus Experiment (NSTX) for the last six years as mentioned in this paper, which can evaporate up to ∼160 grams of lithium onto the lower divertor plates between re-loadings.
Journal ArticleDOI
Safety assessment of two advanced ferritic steel molten salt blanket design concepts
Brad J. Merrill,Mohamed E. Sawan,C.P.C. Wong,Richard E. Nygren,Lee C. Cadwallader,Siegfried Malang,D.-K. Sze +6 more
TL;DR: Abdou et al. as mentioned in this paper explored some of the safety issues associated with two advanced ferritic steel (AFS) molten salt blanket designs from the Advanced Power Extraction (APEX) design study.