Figure 2
Experimental (a,b) and simulated (c,d) spectra of BW hot electrons and raw traces on the imageplate for the different targets (e,f,g). (a) FS and MW targets (θ = 0°), \(I{\lambda }^{2}=1.5\cdot {10}^{18}\,W\,\mu {m}^{2}\,c{m}^{-2}\) and \(I{\lambda }^{2}=3\cdot {10}^{18}\,W\,\mu {m}^{2}\,c{m}^{-2}\); (b) FS (θ = 0°) and NW (θ = 0° and 60°) targets, \(I{\lambda }^{2}=3\cdot {10}^{18}\,W\,\mu {m}^{2}\,c{m}^{-2}\); (c) FS and MW targets, 2D PIC at a 0 = 1, t = 100 fs; (d) NW targets, 2D PIC at a 0 = 1.5, t = 100 fs. The 2D PIC spectrum obtained by filling the gaps between NWs with a pre-plasma of density 10 nc is also reported; (e,f,g) \(I{\lambda }^{2}=3\cdot {10}^{18}\,W\,\mu {m}^{2}\,c{m}^{-2}\); θ = 0°. For a fruitful comparison of the simulated with the experimental spectra the number of electrons given by 2D simulations has been rescaled by a factor given by the extension of the 2D box in the Z direction and by the solid angle.
