Zobrazeno 1 - 10
of 102
pro vyhledávání: '"David L. Bruhwiler"'
Autor:
Benjamin M. Cowan, David L. Bruhwiler, John R. Cary, Estelle Cormier-Michel, Cameron G. R. Geddes
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 16, Iss 4, p 041303 (2013)
We describe a modification to the finite-difference time-domain algorithm for electromagnetics on a Cartesian grid which eliminates numerical dispersion error in vacuum for waves propagating along a grid axis. We provide details of the algorithm, whi
Externí odkaz:
https://doaj.org/article/32f8a562f54d42acba1abdbe910287e8
Autor:
Peter Messmer, David L. Bruhwiler
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 9, Iss 3, p 031302 (2006)
Capillary channels of ≈3 cm in length and with plasma densities ≈10^{18} cm^{-3} are a promising alternative to the much shorter, higher-density gas jets for GeV-scale laser wakefield acceleration of electrons. However, the large discrepancy betw
Externí odkaz:
https://doaj.org/article/531eb4e53db54eed901f86823a34c77f
Autor:
David L. Bruhwiler, Rodolfo E. Giacone, John R. Cary, John P. Verboncoeur, Peter Mardahl, Eric Esarey, W. P. Leemans, B. A. Shadwick
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 4, Iss 10, p 101302 (2001)
We present 2D simulations of both beam-driven and laser-driven plasma wakefield accelerators, using the object-oriented particle-in-cell code XOOPIC, which is time explicit, fully electromagnetic, and capable of running on massively parallel supercom
Externí odkaz:
https://doaj.org/article/d8d2bfcb73234c05a8da43356b364980
Autor:
Rafal Zgadzaj, Oliver Karger, A. Beaton, G. Wittig, Grace Manahan, A. F. Habib, Brendan O'Shea, Vitaly Yakimenko, Mark Hogan, Alexander Knetsch, S. Z. Green, Michael Litos, Y. Xi, Spencer Gessner, Gerard Andonian, Erik Adli, D. Ullmann, Alex Murokh, C. A. Lindstrøm, T. Heinemann, Paul Scherkl, Bernhard Hidding, John R. Cary, James Rosenzweig, Aihua Deng, Christine Clarke, David L. Bruhwiler, Michael C. Downer
Publikováno v:
Nature Physics. 15:1156-1160
Plasma waves generated in the wake of intense, relativistic laser1,2 or particle beams3,4 can accelerate electron bunches to gigaelectronvolt energies in centimetre-scale distances. This allows the realization of compact accelerators with emerging ap
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 906:127-140
Beam dynamics simulations in traveling wave (TW) accelerating structures with significant beam loading is a challenging problem. Some codes are capable of calculating the TW electromagnetic fields , and some can track particles through such fields, b
Autor:
Paul Moeller, David L. Bruhwiler, Oleg Chubar, Maksim Rakitin, Robert Nagler, N. Goldring, B. Nash
Publikováno v:
AIP Conference Proceedings.
The brightness and coherence of modern light sources is pushing the limits of X-ray beamline design. The open source Synchrotron Radiation Workshop (SRW) provides physical optics based algorithms for correctly simulating such beamlines. We present ne
Autor:
Oliver Karger, Bernhard Hidding, Aihua Deng, David L. Bruhwiler, Grace Manahan, G. Wittig, Zheng-Ming Sheng, Dino A. Jaroszynski, James Rosenzweig, Alexander Knetsch, Y. Xi, Jonathan Smith
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 829:83-87
We discuss considerations regarding a novel and robust scheme for optically triggered electron bunch generation in plasma wakefield accelerators [1] . In this technique, a transversely propagating focused laser pulse ignites a quasi-stationary plasma
Publikováno v:
2018 IEEE International Conference on Plasma Science (ICOPS).
In an electron lens a high-current electron beam with a carefully tailored transverse profile is confined by a solenoid magnetic field. Electron lenses have been applied to, or proposed for uses such as hadron beam halo scraping, nonlinear lens eleme
Publikováno v:
Advances in Computational Methods for X-Ray Optics IV.
“Sirepo” is an open source cloud-based software framework which provides a convenient and user-friendly web-interface for scientific codes such as Synchrotron Radiation Workshop (SRW) running on a local machine or a remote server side. SRW is a p
Autor:
Paul Scherkl, Bernhard Hidding, Grace Manahan, Zheng-Ming Sheng, A. Beaton, A. F. Habib, Alexander Knetsch, David L. Bruhwiler, James Rosenzweig, Oliver Karger, G. Wittig, John R. Cary, T. Heinemann, P. Delinikolas
Publikováno v:
Nature communications, vol 8, iss 1
Nature Communications
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Nature Communications 8, 15705 (2017). doi:10.1038/ncomms15705
Nature Communications
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Nature Communications 8, 15705 (2017). doi:10.1038/ncomms15705
Plasma photocathode wakefield acceleration combines energy gains of tens of GeV m−1 with generation of ultralow emittance electron bunches, and opens a path towards 5D-brightness orders of magnitude larger than state-of-the-art. This holds great pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b173bebf7cf700f7a5a11860e176711
https://escholarship.org/uc/item/8m96x7gc
https://escholarship.org/uc/item/8m96x7gc