R
R. A. Snavely
Researcher at Lawrence Livermore National Laboratory
Publications - 52
Citations - 4734
R. A. Snavely is an academic researcher from Lawrence Livermore National Laboratory. The author has contributed to research in topics: Laser & Inertial confinement fusion. The author has an hindex of 27, co-authored 52 publications receiving 4475 citations.
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Journal ArticleDOI
Fast ignition by intense laser-accelerated proton beams.
Markus Roth,Markus Roth,Thomas E. Cowan,Thomas E. Cowan,M. H. Key,S. P. Hatchett,Curtis G. Brown,W. F. Fountain,J. Johnson,Deanna Marie Pennington,R. A. Snavely,Scott Wilks,K. Yasuike,H. Ruhl,Francesco Pegoraro,Sergei V. Bulanov,E. M. Campbell,E. M. Campbell,Michael D. Perry,Michael D. Perry,Howard T. Powell +20 more
TL;DR: An intense proton beam to achieve fast ignition is proposed, produced by direct laser acceleration and focused onto the pellet from the rear side of an irradiated target and can be integrated into a hohlraum for indirect drive ICF.
Journal ArticleDOI
Electron, photon, and ion beams from the relativistic interaction of Petawatt laser pulses with solid targets
Stephen P. Hatchett,Curtis G. Brown,Thomas E. Cowan,Eugene A. Henry,Joy S. Johnson,Michael H. Key,Jeffrey A. Koch,A. Bruce Langdon,Barbara F. Lasinski,Richard W. Lee,A. J. Mackinnon,Deanna Marie Pennington,Michael D. Perry,T. W. Phillips,Markus Roth,T. Craig Sangster,M. S. Singh,R. A. Snavely,M. A. Stoyer,Scott Wilks,K. Yasuike +20 more
TL;DR: In this paper, the energy content, spectra, and angular patterns of the photon, electron, and ion radiations have all been diagnosed in a number of ways, including several novel (to laser physics) nuclear activation techniques.
Journal ArticleDOI
Effect of Plasma Scale Length on Multi-MeV Proton Production by Intense Laser Pulses
A. J. Mackinnon,Marco Borghesi,S. P. Hatchett,M. H. Key,P. K. Patel,H. Campbell,Angelo Schiavi,R. A. Snavely,Scott Wilks,O. Willi +9 more
TL;DR: The experimental results are consistent with an electrostatic accelerating mechanism that requires an ultrashort scale length at the back of the target.
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.
Journal ArticleDOI
Photonuclear Fission from High Energy Electrons from Ultraintense Laser-Solid Interactions
Thomas E. Cowan,Alan W. Hunt,T. W. Phillips,Scott Wilks,Michael D. Perry,Curtis G. Brown,W. F. Fountain,S. P. Hatchett,J. Johnson,M. H. Key,Thomas A. Parnell,Deanna Marie Pennington,R. A. Snavely,Yoshiyuki Takahashi +13 more
TL;DR: A quantitative comparison of the high energy electrons and the bremsstrahlung spectrum, as measured by photonuclear reaction yields, including the photoinduced fission of 238U is reported.