Figure 6
From: Design and optimization of a compact laser-driven proton beamline
Final energy spread of the proton beam as obtained at the end of the complete beamline, including the focusing PMQ array and the ES. The focusing section has been optimized differently for each central energy. The parameters of the ES, indicated in Table 1, are the same for all energies in the range 2–20 MeV and have been optimized using the data reported in Fig. 2. The obtained efficiency \({\eta }_{BL}\ge 1 \% \) (for all analyzed energies) includes all the losses from the laser-plasma source, i.e. the total TNSA accelerated beam, to the end of the beamline.
