In:
Laser and Particle Beams, Hindawi Limited, Vol. 26, No. 4 ( 2008-12), p. 591-596
Abstract:
The properties of beams of high energy protons accelerated during ultraintense, picosecond laser-irradiation of thin foil targets are investigated as a function of preplasma expansion at the target front surface. Significant enhancement in the maximum proton energy and laser-to-proton energy conversion efficiency is observed at optimum preplasma density gradients, due to self-focusing of the incident laser pulse. For very long preplasma expansion, the propagating laser pulse is observed to filament, resulting in highly uniform proton beams, but with reduced flux and maximum energy.
Type of Medium:
Online Resource
ISSN:
0263-0346
,
1469-803X
DOI:
10.1017/S0263034608000657
Language:
English
Publisher:
Hindawi Limited
Publication Date:
2008
detail.hit.zdb_id:
2021816-3
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