Title :
Emittance of fast ion beam generated by high intense ultra-short laser pulse on a foil target of different materials and thickness
Author :
Andreev, A.A. ; Platonov, K.Yu. ; Oishi, Y. ; Nayuki, T. ; Fujii, Teruya ; Fukuchi, T. ; Takizawa, Y. ; Wang, X. ; Nemoto, K.
Author_Institution :
CRIEPI, Komae, Japan
Abstract :
An analytical model based on the experiments was developed to describe divergence angle of ion bunch produced by irradiation of an ultrashort laser pulse onto thin foil. Ion divergence is reciprocally decreased again ion energy in wide experimental parameter region. A modified plasma expansion model described the dependence of maximal proton energy on target thickness and material density, which agree with experimental data.
Keywords :
foils; high-speed optical techniques; ion beams; particle beam bunching; plasma flow; plasma production by laser; plasma transport processes; analytical model; fast ion beam emittance; foil target; high intensity ultrashort laser pulse; ion bunch divergence angle; maximal proton energy; modified plasma expansion model; target material density; target thickness;
Conference_Titel :
High-Power Particle Beams (BEAMS 2004), 2004 International Conference on
Conference_Location :
St. Petersburg
Print_ISBN :
978-5-87911-088-3
