| Issue |
J. Phys. IV France
Volume 133, June 2006
|
|
|---|---|---|
| Page(s) | 367 - 370 | |
| DOI | https://doi.org/10.1051/jp4:2006133074 | |
| Published online | 16 June 2006 | |
Inertial Fusion Sciences and Applications 2005
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 367-370
DOI: 10.1051/jp4:2006133074
1 Dipartimento di Fisica "G. Occhialin", Università di Milano-Bicocca, Italy
2 LOA, École Polytechnique, Palaiseau, France
3 LULI, École Polytechnique, Palaiseau, France
4 Commissariat à l'Énergie Atomique, Bruyères-le-Châtel, France
5 Queen's University Belfast, UK
© EDP Sciences 2006
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 367-370
DOI: 10.1051/jp4:2006133074
Study of the propagation of ultra-intense laser-produced fast electrons in gas jets
D. Batani1, 2, M. Manclossi2, 1, D. Piazza1, S.D. Baton3, A. Benuzzi-Mounaix3, M. Koenig3, H. Popescu3, F. Amiranoff3, M. Rabec Le Gloahec3, C. Rousseaux4, M. Borghesi5 and C. Cecchetti51 Dipartimento di Fisica "G. Occhialin", Università di Milano-Bicocca, Italy
2 LOA, École Polytechnique, Palaiseau, France
3 LULI, École Polytechnique, Palaiseau, France
4 Commissariat à l'Énergie Atomique, Bruyères-le-Châtel, France
5 Queen's University Belfast, UK
Abstract
We present the results of some recent experiments
performed at the LULI laboratory using the 100 TW laser facility concerning
the study of the propagation of fast electrons in gas targets. Novel
diagnostics have been implemented including chirped shadowgraphy and proton
radiography. 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,
and a strong inhibition of propagation. Indeed chirped shadowgraphy images
show a strong reduction of the electron cloud velocity from the initial
value close to a fraction of c.
© EDP Sciences 2006