Zobrazeno 1 - 10
of 83
pro vyhledávání: '"R. J. England"'
Publikováno v:
Royal Society Open Science, Vol 11, Iss 11 (2024)
The development of laser-driven accelerators-on-chip has provided an opportunity to miniaturize devices for electron radiotherapy delivery. Laser-driven accelerators produce highly time-compressed electron pulses, on the 100 fs to 1 ps scale. This de
Externí odkaz:
https://doaj.org/article/f68fe7432fcf4c0eae6d02270782c4dd
Publikováno v:
Structural Dynamics, Vol 11, Iss 2, Pp 024302-024302-11 (2024)
Ultrafast electron diffraction (UED) stands as a powerful technique for real-time observation of structural dynamics at the atomic level. In recent years, the use of MeV electrons from radio frequency guns has been widely adopted to take advantage of
Externí odkaz:
https://doaj.org/article/d1fa517167ac424cb60bf98291cf58c6
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 12, p 121305 (2021)
In dielectric laser-driven accelerators (DLA), careful tuning of drive-laser wavelength and structure periodicity is typically required in order to hit the resonant condition and match the phase velocity of the accelerating wave to the electron beam
Externí odkaz:
https://doaj.org/article/ea47d010d594464f9bebf2d0670cccaf
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 13, Iss 12, p 121301 (2010)
A hollow-core photonic band-gap (PBG) lattice in a dielectric fiber has been proposed as a high-gradient low-cost particle accelerator operating in the optical regime where the accelerating mode confined to a defect in the PBG fiber can be excited by
Externí odkaz:
https://doaj.org/article/8221f92bcfb44b7f9834ca7066a660a0
Autor:
Christopher M. S. Sears, Eric Colby, R. J. England, Rasmus Ischebeck, Christopher McGuinness, Janice Nelson, Robert Noble, Robert H. Siemann, James Spencer, Dieter Walz, Tomas Plettner, Robert L. Byer
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 11, Iss 10, p 101301 (2008)
In this article we demonstrate the net acceleration of relativistic electrons using a direct, in-vacuum interaction with a laser. In the experiment, an electron beam from a conventional accelerator is first energy modulated at optical frequencies in
Externí odkaz:
https://doaj.org/article/b435ad77d40c48649c4631efbfef6044
Autor:
S. G. Anderson, P. Musumeci, J. B. Rosenzweig, W. J. Brown, R. J. England, M. Ferrario, J. S. Jacob, M. C. Thompson, G. Travish, A. M. Tremaine, R. Yoder
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 8, Iss 1, p 014401 (2005)
Velocity bunching has been recently proposed as a tool for compressing electron beam pulses in modern high brightness photoinjector sources. This tool is familiar from earlier schemes implemented for bunching dc electron sources, but presents peculia
Externí odkaz:
https://doaj.org/article/5b5e7ac7a4b84980b4664e752785f367
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 8, Iss 1, p 012801 (2005)
We examine the use of sextupole magnets to correct nonlinearities in the longitudinal phase space transformation of a relativistic beam of charged particles in a dispersionless translating section, or dogleg. Through heuristic analytical arguments an
Externí odkaz:
https://doaj.org/article/1254be323ed24a8485cfbd935e712f45
Publikováno v:
The Journal of laryngology and otology.
ObjectiveTotal thyroidectomy can be used as a definitive treatment modality for thyrotoxicosis. This study assessed the outcomes of patients treated with surgery at a single secondary care site.MethodA retrospective cohort study was conducted analysi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3100e95e0ed2bb84cd9cd40d778e330d
https://pubmed.ncbi.nlm.nih.gov/35282842
https://pubmed.ncbi.nlm.nih.gov/35282842
In order to demonstrate acceleration of electrons to relativistic scales by an on chipdielectric laser accelerator (DLA), a ponderomotive focusing scheme capable of capturingand transporting electrons through nanometer-scale apertures over extended i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecdd059500f1de8febb675bc9b9a963f
http://arxiv.org/abs/2107.11410
http://arxiv.org/abs/2107.11410
Publikováno v:
Applying Laser-driven Particle Acceleration II, Medical and Nonmedical Uses of Distinctive Energetic Particle and Photon Sources: SPIE Optics + Optoelectronics Industry Event.
Dielectric laser acceleration (DLA) of electrons in nanophotonic structures is the analog of classical radio-frequency cavity-based particle acceleration but operating in the optical regime and using microfabricated photonic devices. Boundary conditi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d39fcfea939995497ab91d6761dc217
https://doi.org/10.1117/12.2596508
https://doi.org/10.1117/12.2596508