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.
Papers
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Proceedings ArticleDOI
Stable electron beams with low absolute energy spread from A laser wakefield accelerator with plasma density ramp controlled injection
Cameron Geddes,Estelle Cormier-Michel,Eric Esarey,Wim Leemans,Kei Nakamura,Dmitriy Panasenko,Guillaume Plateau,Carl Schroeder,Csaba D. Tóth,John R. Cary +9 more
TL;DR: In this article, a stable electron beam near 1 MeV with hundred-keV level energy spread and central energy stability was demonstrated using the plasma density profile to control self-injection, and supporting simulations.
Journal ArticleDOI
Near equilibrium distributions for beams with space charge in linear and nonlinear periodic focusing systems
Kiran Sonnad,John R. Cary +1 more
TL;DR: In this article, the authors derived a near equilibrium phase space distribution function for beams with space charge effects in a generalized periodic focusing transport channel using the Lie transform perturbation theory to canonically transform to slowly oscillating phase space coordinates.
Journal ArticleDOI
The Interaction of Iteration Error and Stability for Linear Partial Differential Equations Coupled through an Interface
Brendan Sheehan,Donald Estep,Simon Tavener,John R. Cary,Scott Kruger,Ammar Hakim,A. Pletzer,Johan Carlsson,Srinath Vadlamani +8 more
TL;DR: In this article, the authors investigate properties of algorithms that are used to solve coupled evolutionary partial differential equations posed on neighboring, nonoverlapping domains, where the solutions are coupled by continuity of state and normal flux through a shared boundary.
Proceedings ArticleDOI
Laser Guiding at Relativistic Intensities and Wake-field Particle Acceleration in Plasma Channels
C. G. R. Geddes,Cs. Toth,J. van Tilborg,Eric Esarey,Carl Schroeder,David L. Bruhwiler,Chet Nieter,John R. Cary,Wim Leemans +8 more
TL;DR: In this article, high quality electron beams with hundreds of picoCoulombs of charge in percent energy spread above 80 MeV were produced for the first time in high gradient laser wakefield accelerators by guiding the drive laser pulse.
Journal Article
All-optical beamlet train generation
John R. Cary,Rodolfo Giacone,Chet Nieter,D.L. Bruhwiler,Eric Esarey,Gwenael Fubiani,Wim Leemans +6 more
TL;DR: In this paper, a beamlet train is generated by phase-kick injection at the front of the train and transverse wave breaking for the trailing pulses, and the result is an efficiency improvement of the order of the number of beamlets in the train.