Zobrazeno 1 - 10
of 186
pro vyhledávání: '"G. R. Thomas, A."'
Autor:
Brendan Kettle, Cary Colgan, Eva E. Los, Elias Gerstmayr, Matthew J. V. Streeter, Felicie Albert, Sam Astbury, Rory A. Baggott, Niall Cavanagh, Kateřina Falk, Timothy I. Hyde, Olle Lundh, P. Pattathil Rajeev, Dave Riley, Steven J. Rose, Gianluca Sarri, Chris Spindloe, Kristoffer Svendsen, Dan R. Symes, Michal Šmíd, Alec G. R. Thomas, Chris Thornton, Robbie Watt, Stuart P. D. Mangles
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-7 (2024)
Abstract Laser-driven compact particle accelerators can provide ultrashort pulses of broadband X-rays, well suited for undertaking X-ray absorption spectroscopy measurements on a femtosecond timescale. Here the Extended X-ray Absorption Fine Structur
Externí odkaz:
https://doaj.org/article/05cab197d13f441b96f6c43822dddbdc
Autor:
M. J. V. Streeter, C. Colgan, J. Carderelli, Y. Ma, N. Cavanagh, E. E. Los, H. Ahmed, A. F. Antoine, T. Audet, M. D. Balcazar, L. Calvin, B. Kettle, S. P. D. Mangles, Z. Najmudin, P. P. Rajeev, D. R. Symes, A. G. R. Thomas, G. Sarri
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract The rapid progress that plasma wakefield accelerators are experiencing is now posing the question as to whether they could be included in the design of the next generation of high-energy electron-positron colliders. However, the typical stru
Externí odkaz:
https://doaj.org/article/a13e1376a1b044c5a4db49aa977d7555
Autor:
C. C. Cobo, C. Arran, N. Bourgeois, L. Calvin, J. Carderelli, N. Cavanagh, C. Colgan, S. J. D. Dann, R. Fitzgarrald, E. Gerstmayr, B. Kettle, E. E. Los, S. P. D. Mangles, P. McKenna, Z. Najmudin, P. P. Rajeev, C. P. Ridgers, G. Sarri, M. J. V. Streeter, D. R. Symes, A. G. R. Thomas, R. Watt, C. D. Murphy
Publikováno v:
Physical Review Accelerators and Beams, Vol 27, Iss 11, p 111301 (2024)
While plasma-based accelerators have the potential to positively impact a broad range of research topics, a route to application will only be possible through improved understanding of their stability. We present experimental results of a laser wakef
Externí odkaz:
https://doaj.org/article/c5fbf5ae788a43acb60e14e5ecd530a7
Autor:
P. T. Campbell, B. K. Russell, C. Dong, G. Fiksel, P. M. Nilson, A. G. R. Thomas, C. A. Walsh, K. M. Krushelnick, L. Willingale
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p L012016 (2024)
In experiments performed with the OMEGA EP laser system, proton deflectometry captured magnetic field dynamics consistent with collisionless shock formation driven by strongly magnetized relativistic electrons. During laser-foil interactions, shocks
Externí odkaz:
https://doaj.org/article/bba8d3a83e0d403f9de183f3327279e9
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013272 (2024)
Spatiotemporal control encompasses a variety of techniques for producing laser pulses with dynamic intensity peaks that move independently of the group velocity. This controlled motion of the intensity peak offers a new approach to optimizing laser-b
Externí odkaz:
https://doaj.org/article/e73837d4175445029f91ee442926507f
Publikováno v:
New Journal of Physics, Vol 26, Iss 6, p 063011 (2024)
In this article we investigate novel signatures of radiation reaction via the angular deflection of an electron beam colliding at 90 degrees with an intense laser pulse. Due to the radiation reaction effect, the electrons can be deflected towards the
Externí odkaz:
https://doaj.org/article/67860f28c85f4044810fe8fc1ad123d7
Autor:
H Tang, K Tangtartharakul, R Babjak, I-L Yeh, F Albert, H Chen, P T Campbell, Y Ma, P M Nilson, B K Russell, J L Shaw, A G R Thomas, M Vranic, A V Arefiev, L Willingale
Publikováno v:
New Journal of Physics, Vol 26, Iss 5, p 053010 (2024)
Direct laser acceleration of electrons during a high-energy, picosecond laser interaction with an underdense plasma has been demonstrated to be substantially enhanced by controlling the laser focusing geometry. Experiments using the OMEGA EP facility
Externí odkaz:
https://doaj.org/article/9af1d2c95bbb42ae85efcea205f89b5d
Autor:
B. Loughran, M. J. V. Streeter, H. Ahmed, S. Astbury, M. Balcazar, M. Borghesi, N. Bourgeois, C. B. Curry, S. J. D. Dann, S. DiIorio, N. P. Dover, T. Dzelzainis, O. C. Ettlinger, M. Gauthier, L. Giuffrida, G. D. Glenn, S. H. Glenzer, J. S. Green, R. J. Gray, G. S. Hicks, C. Hyland, V. Istokskaia, M. King, D. Margarone, O. McCusker, P. McKenna, Z. Najmudin, C. Parisuaña, P. Parsons, C. Spindloe, D. R. Symes, A. G. R. Thomas, F. Treffert, N. Xu, C. A. J. Palmer
Publikováno v:
High Power Laser Science and Engineering, Vol 11 (2023)
The interaction of relativistically intense lasers with opaque targets represents a highly non-linear, multi-dimensional parameter space. This limits the utility of sequential 1D scanning of experimental parameters for the optimization of secondary r
Externí odkaz:
https://doaj.org/article/1349e2cb140a4a0689e58da61a33d393
Autor:
E. R. Tubman, A. S. Joglekar, A. F. A. Bott, M. Borghesi, B. Coleman, G. Cooper, C. N. Danson, P. Durey, J. M. Foster, P. Graham, G. Gregori, E. T. Gumbrell, M. P. Hill, T. Hodge, S. Kar, R. J. Kingham, M. Read, C. P. Ridgers, J. Skidmore, C. Spindloe, A. G. R. Thomas, P. Treadwell, S. Wilson, L. Willingale, N. C. Woolsey
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Magnetic fields can be reorganized by plasma flows and lead to effects such as magnetic reconnection. Here the authors explore the evolution of magnetized-plasma bubbles in a semi-collisional regime and the role of pressure anisotropy in influencing
Externí odkaz:
https://doaj.org/article/951e95e6d410452ab3f242fa92f2c94d
Autor:
R. J. Shalloo, S. J. D. Dann, J.-N. Gruse, C. I. D. Underwood, A. F. Antoine, C. Arran, M. Backhouse, C. D. Baird, M. D. Balcazar, N. Bourgeois, J. A. Cardarelli, P. Hatfield, J. Kang, K. Krushelnick, S. P. D. Mangles, C. D. Murphy, N. Lu, J. Osterhoff, K. Põder, P. P. Rajeev, C. P. Ridgers, S. Rozario, M. P. Selwood, A. J. Shahani, D. R. Symes, A. G. R. Thomas, C. Thornton, Z. Najmudin, M. J. V. Streeter
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Laser wakefield accelerators are compact sources of ultra-relativistic electrons which are highly sensitive to many control parameters. Here the authors present an automated machine learning based method for the efficient multi-dimensional optimizati
Externí odkaz:
https://doaj.org/article/52f417d3dae44109aa044364bd1601e2