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Richard B. Stephens
Researcher at General Atomics
Publications - 240
Citations - 8376
Richard B. Stephens is an academic researcher from General Atomics. The author has contributed to research in topics: Laser & Inertial confinement fusion. The author has an hindex of 46, co-authored 240 publications receiving 7839 citations. Previous affiliations of Richard B. Stephens include ExxonMobil & Lawrence Livermore National Laboratory.
Papers
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Journal ArticleDOI
Isochoric heating of solid-density matter with an ultrafast proton beam.
P. K. Patel,A. J. Mackinnon,M. H. Key,Thomas E. Cowan,Mark Foord,M Allen,Dwight Price,H. Ruhl,P. T. Springer,Richard B. Stephens +9 more
TL;DR: The technique described of ultrafast proton heating provides a unique method for creating isochorically heated high-energy density plasma states.
Journal ArticleDOI
Ultralow Emittance, Multi-MeV Proton Beams from a Laser Virtual-Cathode Plasma Accelerator
Thomas E. Cowan,Thomas E. Cowan,Julien Fuchs,Julien Fuchs,Julien Fuchs,H. Ruhl,H. Ruhl,Andreas Kemp,Andreas Kemp,Patrick Audebert,Markus Roth,Richard B. Stephens,I. Barton,Abel Blazevic,E. Brambrink,J. Cobble,Juan C. Fernández,J. C. Gauthier,M. Geissel,Manuel Hegelich,J. L. Kaae,Stefan Karsch,G. P. Le Sage,Samuel A. Letzring,M. Manclossi,S. Meyroneinc,A. Newkirk,Henri Pépin,N. Renard-LeGalloudec +28 more
TL;DR: The laminarity of high-current multi-MeV proton beams produced by irradiating thin metallic foils with ultraintense lasers has been measured and appears to be at least 100-fold better than conventional accelerator beams.
Journal ArticleDOI
Low-Temperature Specific Heat and Thermal Conductivity of Noncrystalline Dielectric Solids
TL;DR: The specific heat and thermal conductivity of amorphous varnish has been measured between 0.05 and 2 K as discussed by the authors, and the properties were found to be very similar to those of the previously measured glasses: Si${\mathrm{O}}_{2}$, Corning code 7740, Se, polymethylmethacrylate (PMMA), polystyrene (PS), Lexan and glycerol.
Journal ArticleDOI
Rituximab versus a watch-and-wait approach in patients with advanced-stage, asymptomatic, non-bulky follicular lymphoma: an open-label randomised phase 3 trial
Kirit M. Ardeshna,Wendi Qian,Paul Smith,Nivette Braganca,Lisa Lowry,Pip Patrick,June Warden,L. Stevens,Christopher Pocock,Fiona Miall,David Cunningham,John Davies,Andrew Jack,Richard B. Stephens,Jan Walewski,Burhan Ferhanoglu,Kenneth F. Bradstock,David C. Linch +17 more
TL;DR: Rituximab monotherapy should be considered as a treatment option for patients with asymptomatic, advanced-stage, low-tumour-burden follicular lymphoma and the effect of this strategy on quality of life (QoL).
Journal ArticleDOI
K α fluorescence measurement of relativistic electron transport in the context of fast ignition
Richard B. Stephens,R. A. Snavely,Yefim Aglitskiy,François Amiranoff,C. Andersen,Dimitri Batani,Sophie Baton,Thomas E. Cowan,R. R. Freeman,Todd H. Hall,S. P. Hatchett,J. M. Hill,M. H. Key,J A King,J. A. Koch,M. Koenig,A. J. Mackinnon,Kate Lancaster,E. Martinolli,Peter Norreys,E. Perelli-Cippo,M. Rabec Le Gloahec,C. Rousseaux,Joao Santos,F. Scianitti +24 more
TL;DR: A Monte Carlo model with a heuristic model for the electron injection gives a reasonable fit with data measured by imaging K(alpha) radiation from high- Z layers buried in low- Z foils.