Journal ArticleDOI
Scaling of proton acceleration driven by petawatt-laser-plasma interactions
L. Robson,P. T. Simpson,R.J. Clarke,R.J. Clarke,Kenneth W. D. Ledingham,Filip Lindau,Olle Lundh,T. McCanny,P. Mora,David Neely,Claes-Göran Wahlström,Matthew Zepf,Paul McKenna +12 more
TLDR
In this paper, the authors extend the energy and intensity range over which proton scaling is experimentally investigated, up to 400 J and 6×10^20 Wcm−2 respectively, and find a slower proton scale than previously predicted.Abstract:
The possibility of using high-power lasers to generate high-quality beams of energetic ions is attracting large global interest. The prospect of using laser-accelerated protons in medicine attracts particular interest, as these schemes may lead to compact and relatively low-cost sources. Among the challenges remaining before these sources can be used in medicine is to increase the numbers and energies of the ions accelerated. Here, we extend the energy and intensity range over which proton scaling is experimentally investigated, up to 400 J and 6×10^20 Wcm−2 respectively, and find a slower proton scaling than previously predicted. With the aid of plasma-expansion simulation tools, our results suggest the importance of time-dependent andmultidimensional effects in predicting the maximum proton energy in this ultrahigh-intensity regime. The implications of our new understanding of proton scaling for potential medical applications are discussed. (Less)read more
Citations
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Journal ArticleDOI
Ion acceleration by superintense laser-plasma interaction
TL;DR: An overview of the state of the art of ion acceleration by laser pulses as well as an outlook on its future development and perspectives are given in this article. But the main features observed in the experiments, the observed scaling with laser and plasma parameters, and the main models used both to interpret experimental data and to suggest new research directions are described.
Journal ArticleDOI
Review of laser-driven ion sources and their applications.
TL;DR: The historical background including the early laser-matter interaction studies on energetic ion acceleration relevant to inertial confinement fusion is reviewed and several implemented and proposed mechanisms of proton and/or ion acceleration driven by ultra-short high-intensity lasers are described.
Journal ArticleDOI
Collisionless shocks in laser-produced plasma generate monoenergetic high-energy proton beams
Dan Haberberger,Sergei Tochitsky,Frederico Fiuza,Chao Gong,Ricardo Fonseca,Ricardo Fonseca,Luis O. Silva,Warren Mori,C. Joshi +8 more
TL;DR: Discovery of a laser–plasma acceleration mechanism that generates 20 MeV proton beams with a 1% spread is a promising step in the development of laser-driven proton accelerators.
Journal ArticleDOI
Bright laser-driven neutron source based on the relativistic transparency of solids
Markus Roth,Markus Roth,Daniel Jung,Katerina Falk,N. Guler,O. Deppert,M. Devlin,Andrea Favalli,Juan C. Fernández,Donald C. Gautier,M. Geissel,R. C. Haight,Christopher E. Hamilton,Bjorn Hegelich,Randall P. Johnson,Frank E. Merrill,Gabriel Schaumann,Kurt F. Schoenberg,Marius Schollmeier,T. Shimada,Terry N. Taddeucci,J. L. Tybo,F. Wagner,Stephen A. Wender,Carl Wilde,G. A. Wurden +25 more
TL;DR: This work demonstrated an ion acceleration mechanism based on the concept of relativistic transparency and produced an intense beam of high energy deuterons directed into a Be converter to produce a forward peaked neutron flux with a record yield.
Journal ArticleDOI
The scaling of proton energies in ultrashort pulse laser plasma acceleration
Karl Zeil,Stephan Kraft,Stefan Bock,Michael Bussmann,Thomas E. Cowan,Thomas Kluge,J. Metzkes,T. Richter,R. Sauerbrey,Ulrich Schramm +9 more
TL;DR: In this article, an ultrashort pulse laser acceleration of protons that yields unprecedented maximum proton energies of 17MeV at a table-top Ti:sapphire laser power level of 100TW was investigated.
References
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Journal ArticleDOI
Absorption of ultra-intense laser pulses.
TL;DR: In this article, the interaction of ultra-intensemble laser pulses with a plasma was investigated and substantial absorption into heated electrons with a characteristic temperature of order the pondermotive potential was found.
Journal ArticleDOI
Intense High-Energy Proton Beams from Petawatt-Laser Irradiation of Solids
R. Snavely,R. Snavely,M. H. Key,S. P. Hatchett,Thomas E. Cowan,Markus Roth,T. W. Phillips,M. A. Stoyer,E. A. Henry,T. C. Sangster,M. S. Singh,Scott Wilks,A. J. Mackinnon,A. A. Offenberger,Deanna Marie Pennington,K. Yasuike,A. B. Langdon,Barbara F. Lasinski,J. Johnson,Michael D. Perry,E. M. Campbell +20 more
TL;DR: An intense collimated beam of high-energy protons is emitted normal to the rear surface of thin solid targets irradiated at 1 PW power and peak intensity 3x10(20) W cm(-2).
Journal ArticleDOI
Energetic proton generation in ultra-intense laser–solid interactions
Scott Wilks,A. B. Langdon,Thomas E. Cowan,Markus Roth,M. S. Singh,Stephen P. Hatchett,M. H. Key,Deanna Marie Pennington,A. J. Mackinnon,R. Snavely +9 more
TL;DR: In this paper, an attempt is made to explain the physical process present that will explain the presence of these energetic protons, as well as explain the number, energy, and angular spread of the protons observed in experiment.
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
Highly efficient relativistic-ion generation in the laser-piston regime.
TL;DR: An intense laser-plasma interaction regime of the generation of high density ultrashort relativistic ion beams is suggested and it is suggested that the laser energy is transformed efficiently into the energy of fast ions.
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