Optical shadowgraphy and proton imaging as diagnostics tools for fast electron propagation in ultrahigh-intensity laser-matter interaction - École polytechnique Accéder directement au contenu
Article Dans Une Revue Radiation Effects and Defects in Solids Année : 2005

Optical shadowgraphy and proton imaging as diagnostics tools for fast electron propagation in ultrahigh-intensity laser-matter interaction

C. Rousseaux
  • Fonction : Auteur
Victor Malka
T. Hall
  • Fonction : Auteur

Résumé

This paper reports the results of some recent experiments performed at the LULI laboratory (Palaiseau, France) concerning the propagation of large relativistic electron currents in a gas jet. We present our experimental results according to the type of diagnostics used in the experiments: (1) time resolved optical shadowgraphy and (2) proton imaging. Proton radiography images did show the presence of very strong fields in the gas probably produced by charge separation. In turn, these imply a slowing down of the fast electron cloud as it penetrates in the gas. Indeed, shadowgraphy images show a strong inhibition of propagation and a strong reduction in time of the velocity of the electron cloud from the initial value, which is of the order of a fraction of c.
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Dates et versions

hal-00508687 , version 1 (05-08-2010)

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Citer

M. Manclossi, D. Batani, D. Piazza, S. Baton, François Amiranoff, et al.. Optical shadowgraphy and proton imaging as diagnostics tools for fast electron propagation in ultrahigh-intensity laser-matter interaction. Radiation Effects and Defects in Solids, 2005, 160 (10 - 12), pp.575 - 585. ⟨10.1080/10420150500492941⟩. ⟨hal-00508687⟩
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