Characterization of Energetic Protons Generated in the ShenGuang-II UP Petawatt Laser Interactions with Foil Targets

<div>(a) The optical density distribution of 16.8 MeV protons in Figure <a href="../fig3/#a">3(a)</a>. (b) The experimental optical density profile of 16.8 MeV protons in the white box region in (a), and the simulated optical density profile of 16.8 MeV protons with source sizes of 1 <i>μ</i>m, 12 <i>μ</i>m, and 50 <i>μ</i>m in 1/<i>e</i> diameter, respectively.</div>

Laser and Particle Beams

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Figure 4

Figure 4: Characterization of Energetic Protons Generated in the ShenGuang-II UP Petawatt Laser Interactions with Foil Targets 