Structural diagram of our proposed target. Here, the L, D, and W are the distance between two cavity, depth and diameter of cavity, respectively. The SPCT density n varies from to in our different simulations while the proton-rich microtarget density is fixed in all simulations.
Spatial distribution of Ey in the (x, y) plane (a) at and (b) at , respectively. Spatial distribution of (c) electric field Ex and (d) magnetic field Bz in the (x, y) plane at . The electric and magnetic fields normalized by . The SPCT density and distance between two cavity are and , respectively. The depth and diameter of the cavity are and , respectively. The thickness and width of the proton-rich microtarget are and , respectively.
Spatial distribution of the (a) electrons and (b) protons in the (x, y) plane at . The (c) is corresponding protons phase space portrait (x, px ) at . And (d) is the protons energy spectrum at . Other parameters are the same as in Fig. 2 .
(a) Energy spectra of the protons at different times. (b) The temporal evolution of the proton peak energy in a time interval. Other parameters are the same as in Fig. 2 .
Energy spectra of the protons for different (a) SPCT densities, (b) distance between two cavity L, and (c) diameter of cavity W at , respectively. (d) The proton peak energy versus the L (black line), (red line), and W (blue line) at . Other parameters are the same as in Fig. 2 .
Article metrics loading...
Full text loading...