Generating multi-GeV electron bunches using single stage laser wakefield acceleration in a 3D nonlinear regime
Wei Lu,Michail Tzoufras,C. Joshi,Frank Tsung,Warren Mori,Jorge Vieira,Ricardo Fonseca,Luis O. Silva +7 more
TLDR
In this article, a phenomenological framework for laser wakefield acceleration (LWFA) in the 3D nonlinear regime was developed, in which the plasma electrons are expelled by the radiation pressure of a short pulse laser, leading to nearly complete blowout.Abstract:
The extraordinary ability of space-charge waves in plasmas to accelerate charged particles at gradients that are orders of magnitude greater than in current accelerators has been well documented. We develop a phenomenological framework for laser wakefield acceleration (LWFA) in the 3D nonlinear regime, in which the plasma electrons are expelled by the radiation pressure of a short pulse laser, leading to nearly complete blowout. Our theory provides a recipe for designing a LWFA for given laser and plasma parameters and estimates the number and the energy of the accelerated electrons whether self-injected or externally injected. These formulas apply for self-guided as well as externally guided pulses (e.g. by plasma channels). We demonstrate our results by presenting a sample particle-in-cell (PIC) simulation of a $30\text{ }\mathrm{fs}$, 200 TW laser interacting with a 0.75 cm long plasma with density $1.5\ifmmode\times\else\texttimes\fi{}{10}^{18}\text{ }\text{ }{\mathrm{cm}}^{\ensuremath{-}3}$ to produce an ultrashort (10 fs) monoenergetic bunch of self-injected electrons at 1.5 GeV with 0.3 nC of charge. For future higher-energy accelerator applications, we propose a parameter space, which is distinct from that described by Gordienko and Pukhov [Phys. Plasmas 12, 043109 (2005)] in that it involves lower plasma densities and wider spot sizes while keeping the intensity relatively constant. We find that this helps increase the output electron beam energy while keeping the efficiency high.read more
Citations
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Journal ArticleDOI
Spatial and temporal measurements of plasma/gas densities in a capillary gas-cell for laser-plasma accelerators
TL;DR: In this article, the authors measured the spatial and the temporal plasma/gas densities in a capillary gas-cell by using the interferometric and the Raman scattering methods.
DissertationDOI
Erzeugung dichter Elektronenpulse mit Laser-Plasma-Beschleunigern für QED Experimente in hohen Feldern
TL;DR: In this article, an analytisches Modell for passiven Plasmalinse with ultra-kurzen LWFA-Elektronenpulsen untersucht is presented.
Book ChapterDOI
X-FELs Driven by Plasma Based Accelerators
TL;DR: The first soft X-ray FEL FLASH lasing at Deutsches Elektronen-Synchrotron (DESY) in 2007 [1] and the first hard X ray FEL LCLS (Linac Coherent Light Source) lasing as mentioned in this paper made great contributions to many branches of research in physics, chemistry, biology, materials and environmental science.
Journal ArticleDOI
Influence of ionization on the formation of a plasma channel and transport of a relativistic electron beam in hydrocarbon gas
TL;DR: In this article, the influence of ionization on the formation of plasma channel and the propagation of a relativistic electron beam in a near-critical density hydrocarbon gas is investigated by using two-dimensional (2D) particle-in-cell (PIC) simulations.
Journal ArticleDOI
Characterisation of a laser plasma betatron source for high resolution x-ray imaging
Oliver Finlay,J.-N. Gruse,C. Thornton,Ric M. Allott,Chris Armstrong,C. D. Baird,Nicolas Bourgeois,Ceri Brenner,Silvia Cipiccia,Jason Cole,Christopher D. Gregory,Steven Jamison,Y. Katzir,Nelson Lopes,Stuart Mangles,C. D. Murphy,Zulfikar Najmudin,David Neely,Laura Rhian Pickard,Kevin D Potter,P. P. Rajeev,Dean Rusby,Matthew Selwood,D. R. Symes,C. I. D. Underwood,J. C. Wood,Alexander Thomas,M. J. V. Streeter +27 more
TL;DR: In this article, an x-ray source was generated by a laser-driven plasma wakefield accelerator and the spectra of the optimized source was consistent with an on-axis synchrotron spectrum with a critical energy of 13.8+2.9 keV and the number of photons per pulse generated above 1 keV was calculated to be 6+1.2-0.9
References
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Laser Electron Accelerator
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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
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