J
John R. Cary
Researcher at University of Colorado Boulder
Publications - 286
Citations - 8541
John R. Cary is an academic researcher from University of Colorado Boulder. The author has contributed to research in topics: Plasma & Electron. The author has an hindex of 41, co-authored 284 publications receiving 7943 citations. Previous affiliations of John R. Cary include Los Alamos National Laboratory & University of California, Berkeley.
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Journal ArticleDOI
High-quality electron beams from a laser wakefield accelerator using plasma-channel guiding
C. G. R. Geddes,C. G. R. Geddes,Cs. Toth,van J Jeroen Tilborg,van J Jeroen Tilborg,Eric Esarey,Carl Schroeder,David L. Bruhwiler,Chet Nieter,John R. Cary,Wim Leemans +10 more
TL;DR: A laser accelerator that produces electron beams with an energy spread of a few per cent, low emittance and increased energy (more than 109 electrons above 80 MeV) and opens the way for compact and tunable high-brightness sources of electrons and radiation.
Journal ArticleDOI
VORPAL: a versatile plasma simulation code
Chet Nieter,John R. Cary +1 more
TL;DR: Results for the generation of laser wake fields through laser-plasma interaction are presented and a new fluid algorithm that allows for regions of zero density was developed and incorporated into the code.
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Noncanonical Hamiltonian mechanics and its application to magnetic field line flow
TL;DR: In this article, a noncanonical Hamiltonian theory of dynamical systems is presented and applied to magnetic field line flow, which allows all the theorems of Hamiltonian mechanics (most importantly, Noether's theorem, relating symmetries and invariants) to be applied to the magnetic field lines system.
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Plasma-Density-Gradient Injection of Low Absolute-Momentum-Spread Electron Bunches
C. G. R. Geddes,Kei Nakamura,Guillaume Plateau,Cs. Toth,Estelle Cormier-Michel,Eric Esarey,Carl Schroeder,John R. Cary,Wim Leemans +8 more
TL;DR: In this article, a gas jet was used to control the wake phase velocity and trapping threshold in a laser wakefield accelerator, producing stable electron bunches with longitudinal and transverse momentum spreads more than ten times lower than in previous experiments.
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Hamiltonian theory of guiding-center motion
John R. Cary,Alain J. Brizard +1 more
TL;DR: In this article, a hierarchy in the extent to which particles move off of flux surfaces is established, which extends from no motion off flux surfaces for any particle to no average motion off surface for particular types of particles.