Zobrazeno 1 - 10
of 43
pro vyhledávání: '"D A Jaroszynski"'
Autor:
A Maitrallain, E Brunetti, M J V Streeter, B Kettle, R Spesyvtsev, G Vieux, M Shahzad, B Ersfeld, S R Yoffe, A Kornaszewski, O Finlay, Y Ma, F Albert, N Bourgeois, S J D Dann, N Lemos, S Cipiccia, J M Cole, I G González, L Willingale, A Higginbotham, A E Hussein, M Šmid, K Falk, K Krushelnick, N C Lopes, E Gerstmayr, C Lumsdon, O Lundh, S P D Mangles, Z Najmudin, P P Rajeev, D R Symes, A G R Thomas, D A Jaroszynski
Publikováno v:
New Journal of Physics, Vol 24, Iss 1, p 013017 (2022)
Laser wakefield accelerators commonly produce on-axis, low-divergence, high-energy electron beams. However, a high charge, annular shaped beam can be trapped outside the bubble and accelerated to high energies. Here we present a parametric study on t
Externí odkaz:
https://doaj.org/article/73efba51f7cd478abdc2f40829d178b9
Autor:
Q Zhao, S M Weng, Z M Sheng, M Chen, G B Zhang, W B Mori, B Hidding, D A Jaroszynski, J Zhang
Publikováno v:
New Journal of Physics, Vol 20, Iss 6, p 063031 (2018)
The effect of an external transverse magnetic field on ionization injection of electrons in a laser wakefield accelerator (LWFA) is investigated by theoretical analysis and particle-in-cell simulations. On application of a few tens of Tesla magnetic
Externí odkaz:
https://doaj.org/article/d69c05377f134f278361ce8f6f126f30
Autor:
M R Islam, E Brunetti, R P Shanks, B Ersfeld, R C Issac, S Cipiccia, M P Anania, G H Welsh, S M Wiggins, A Noble, R A Cairns, G Raj, D A Jaroszynski
Publikováno v:
New Journal of Physics, Vol 17, Iss 9, p 093033 (2015)
The laser–plasma wakefield accelerator is a compact source of high brightness, ultra-short duration electron bunches. Self-injection occurs when electrons from the background plasma gain sufficient momentum at the back of the bubble-shaped accelera
Externí odkaz:
https://doaj.org/article/fb5067c419784051b32970ce8055aaf6
Publikováno v:
New Journal of Physics, Vol 17, Iss 10, p 103026 (2015)
Raman backscattering (RBS) in plasma is the basis of plasma-based amplifiers and is important in laser-driven fusion experiments. We show that saturation can arise from nonlinearities due to coupling between the fundamental and harmonic plasma wave m
Externí odkaz:
https://doaj.org/article/09516ffdcebb41f79cd95d8ec4bce9bf
Publikováno v:
New Journal of Physics, Vol 17, Iss 5, p 053008 (2015)
Direct ionization of hydrogen atoms by laser irradiation is investigated as a potential new scheme to generate proton beams without stripping foils. The time-dependent Schrödinger equation describing the atom-radiation interaction is numerically sol
Externí odkaz:
https://doaj.org/article/2226621a4d83455cb092846aff4e1ba3
Publikováno v:
New Journal of Physics, Vol 17, Iss 4, p 043045 (2015)
A new mechanism for electromagnetic emission in the terahertz (THz) frequency regime from laser-plasma interactions is described. A localized and long-lasting transverse current is produced by two counter-propagating short laser pulses in weakly magn
Externí odkaz:
https://doaj.org/article/066ca296c8c142a7a2eb276029798f86
Publikováno v:
New Journal of Physics, Vol 16, Iss 9, p 093025 (2014)
The ion-channel laser (ICL) is an ultra-compact version of the free-electron laser (FEL), with the undulator replaced by an ion channel. Previous studies of the ICL assumed transverse momentum amplitudes which were unrealistically small for experimen
Externí odkaz:
https://doaj.org/article/6afb680c096a48cab1b0995c712f8353
Autor:
G G Manahan, E Brunetti, C Aniculaesei, M P Anania, S Cipiccia, M R Islam, D W Grant, A Subiel, R P Shanks, R C Issac, G H Welsh, S M Wiggins, D A Jaroszynski
Publikováno v:
New Journal of Physics, Vol 16, Iss 10, p 103006 (2014)
Electron beams from laser-plasma wakefield accelerators have low transverse emittance, comparable to those from conventional radio frequency accelerators, which highlights their potential for applications, many of which will require the use of quadru
Externí odkaz:
https://doaj.org/article/21e32b122a124363b0e2f70ec219e281
Autor:
M. J. V. Streeter, Y. Ma, B. Kettle, S. J. D. Dann, E. Gerstmayr, F. Albert, N. Bourgeois, S. Cipiccia, J. M. Cole, I. Gallardo González, A. E. Hussein, D. A. Jaroszynski, K. Falk, K. Krushelnick, N. Lemos, N. C. Lopes, C. Lumsdon, O. Lundh, S. P. D. Mangles, Z. Najmudin, P. P. Rajeev, R. Sandberg, M. Shahzad, M. Smid, R. Spesyvtsev, D. R. Symes, G. Vieux, A. G. R. Thomas
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 10, p 101302 (2022)
We report on experimental measurements of energy transfer efficiencies in a GeV-class laser wakefield accelerator. Both the transfer of energy from the laser to the plasma wakefield and from the plasma to the accelerated electron beam was diagnosed b
Externí odkaz:
https://doaj.org/article/a4841cb57f2d4a0dafc47d2acbe910f9
Autor:
G. Vieux, S. Cipiccia, D. W. Grant, N. Lemos, P. Grant, C. Ciocarlan, B. Ersfeld, M. S. Hur, P. Lepipas, G. G. Manahan, G. Raj, D. Reboredo Gil, A. Subiel, G. H. Welsh, S. M. Wiggins, S. R. Yoffe, J. P. Farmer, C. Aniculaesei, E. Brunetti, X. Yang, R. Heathcote, G. Nersisyan, C. L. S. Lewis, A. Pukhov, J. M. Dias, D. A. Jaroszynski
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
Abstract Raman amplification arising from the excitation of a density echelon in plasma could lead to amplifiers that significantly exceed current power limits of conventional laser media. Here we show that 1–100 J pump pulses can amplify picojoule
Externí odkaz:
https://doaj.org/article/8bafac19af0a4de0b33796618c061a3e