We report on the results of a recent experiment at the Rutherford Appleton Laboratory investigating fast electron propagation in cylindrically compressed targets; a subject of interest for fast ignition. This experiment was performed within the framework of the road map of HiPER (the European High Power laser Energy Research facility Project). Protons accelerated by a ps-laser pulse are used to radiograph a 220 mu m diameter, imploded with similar to 200 J of laser light (1 ns lambda = 0.53 mu m) in four symmetrically incident beams. Results are also compared with those from hard x-ray radiography. Detailed comparison with 2D radiation hydrodyamics simulations is performed with the aid of a Monte Carlo code adapted to describe plasma effects. Finally, a simple analytical model is developed to estimate the performance of proton radiography for given implosion conditions.

Volpe, L., Jafer, R., Vazuour, B., Nicolai, P., Santos, J., Dorchies, F., et al. (2011). Proton radiography of cylindrical laser-driven implosions
. PLASMA PHYSICS AND CONTROLLED FUSION, 53(3), 32003 [10.1088/0741-3335/53/3/032003].

Proton radiography of cylindrical laser-driven implosions


RICHETTA, MARIA;
2011-01-01

Abstract

We report on the results of a recent experiment at the Rutherford Appleton Laboratory investigating fast electron propagation in cylindrically compressed targets; a subject of interest for fast ignition. This experiment was performed within the framework of the road map of HiPER (the European High Power laser Energy Research facility Project). Protons accelerated by a ps-laser pulse are used to radiograph a 220 mu m diameter, imploded with similar to 200 J of laser light (1 ns lambda = 0.53 mu m) in four symmetrically incident beams. Results are also compared with those from hard x-ray radiography. Detailed comparison with 2D radiation hydrodyamics simulations is performed with the aid of a Monte Carlo code adapted to describe plasma effects. Finally, a simple analytical model is developed to estimate the performance of proton radiography for given implosion conditions.
2011
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/01 - FISICA SPERIMENTALE
English
Con Impact Factor ISI
Analytical model; Fast electrons; Fast ignition; Hard X ray; High-power; Incident beams; Laser lights; Laser-driven implosions; Monte Carlo codes; Plasma effects; Proton radiography; Road-maps; Rutherford appleton laboratories,Engineering controlled terms: Cylinders (shapes); Experiments; High power lasers; Lasers; Mathematical models; Protons; Radiation effects; Radiology,Engineering main heading: X ray radiography
Volpe, L., Jafer, R., Vazuour, B., Nicolai, P., Santos, J., Dorchies, F., et al. (2011). Proton radiography of cylindrical laser-driven implosions
. PLASMA PHYSICS AND CONTROLLED FUSION, 53(3), 32003 [10.1088/0741-3335/53/3/032003].
Volpe, L; Jafer, R; Vazuour, B; Nicolai, P; Santos, J; Dorchies, F; Fourment, C; Hulin, S; Regan, C; Perez, F; Baton, S; Lancaster, K; Galimberti, M; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/18295
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