Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Ridgers, Christopher P."'
As the repetition rates of ultra-high intensity lasers increase, simulations used for the prediction of experimental results may need to be augmented with machine learning to keep up. In this paper, the usage of gaussian process regression in produci
Externí odkaz:
http://arxiv.org/abs/2411.02079
Autor:
Engelbrecht, Michel Osca, Jenderny, Jonathan, Hylla, Henrik, Filla, Dominik, Awakowicz, Peter, Korolov, Ihor, Ridgers, Christopher P., Gibson, Andrew R.
Controlling fluxes of vacuum ultraviolet (VUV) radiation is important in a number of industrial and biomedical applications of low pressure plasma sources because, depending on the process, VUV radiation may be desired, required to a certain degree,
Externí odkaz:
http://arxiv.org/abs/2402.08092
Autor:
Qian, Qian, Seipt, Daniel, Vranic, Marija, Grismayer, Thomas E., Blackburn, Tom G., Ridgers, Christopher P., Thomas, Alexander G. R.
With the rapid development of high-power petawatt class lasers worldwide, exploring physics in the strong field QED regime will become one of the frontiers for laser-plasma interactions research. Particle-in-cell codes, including quantum emission pro
Externí odkaz:
http://arxiv.org/abs/2306.16706
Publikováno v:
Matter and Radiation at Extremes 6, 046904 (2021)
Proton radiography has proved increasingly successful as a diagnostic for electric and magnetic fields in high energy density physics experiments. Most experiments use target-normal-sheath-acceleration sources with a wide energy range in the proton b
Externí odkaz:
http://arxiv.org/abs/2107.07226
Highly efficient conversion of laser energy to hard X-rays in high intensity laser-solid simulations
We present simulations which predict significantly higher laser to X-ray efficiencies than those previously found in high intensity (1e20-1e22 W/cm2) laser-solid simulations. The bremsstrahlung emission is shown to last for 10-100 ps, which is diffic
Externí odkaz:
http://arxiv.org/abs/2107.01723
Autor:
Wright, Steven A., Ridgers, Christopher P., Mudalige, Gihan R., Lantra, Zaman, Williams, Josh, Sunderland, Andrew, Thorne, H. Sue, Arter, Wayne
Publikováno v:
In Computer Physics Communications May 2024 298
Autor:
Arran, Christopher, Dearling, Adam, Bradford, Philip, Hicks, George. S., Al-Atabi, Saleh, Antonelli, Luca, Ettlinger, Oliver C., Khan, Matthew, Read, Martin P., Glize, Kevin, Notley, Margaret, Walsh, Christopher A., Kingham, Robert J., Najmudin, Zulfikar, Ridgers, Christopher P., Woolsey, Nigel C.
We describe the direct measurement of the expulsion of a magnetic field from a plasma driven by heat flow. Using a laser to heat a column of gas within an applied magnetic field, we isolate Nernst advection and show how it changes the field over a na
Externí odkaz:
http://arxiv.org/abs/2105.07414
Publikováno v:
New J.Phys. 23, 053025 (2021)
By taking the spin and polarization of the electrons, positrons and photons into account in the strong-field QED processes of nonlinear Compton emission and pair production, we find that the growth rate of QED cascades in ultra-intense laser fields c
Externí odkaz:
http://arxiv.org/abs/2010.04078
Publikováno v:
Phys. Rev. A 100, 061402 (2019)
Here, we demonstrate the radiative polarization of high-energy electron beams in collisions with ultrashort pulsed bi-chromatic laser fields. Employing a Boltzmann kinetic approach for the electron distribution allows us to simulate the beam polariza
Externí odkaz:
http://arxiv.org/abs/1904.12037
Autor:
Arran, Christopher, Cole, Jason M., Gerstmayr, Elias, Blackburn, Tom G., Mangles, Stuart P. D., Ridgers, Christopher P.
As new laser facilities are developed with intensities on the scale of 10^22 - 10^24 W cm^-2 , it becomes ever more important to understand the effect of strong field quantum electrodynamics processes, such as quantum radiation reaction, which will p
Externí odkaz:
http://arxiv.org/abs/1901.09015