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Effect of target composition on proton acceleration in ultraintense laser-thin foil interaction
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10.1063/1.4750050
/content/aip/journal/pop/19/9/10.1063/1.4750050
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/9/10.1063/1.4750050
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Sketches of the targets. Case1, a mixed target composes of protons, carbon ions, and electrons with the size of . Case2/case3, double layer target with a hydrogen/carbon layer placed behind a flat normal carbon/hydrogen foil. Here, and are the thicknesses of carbon ions and protons. A CP laser pulse is incident on the foil target from the left boundary.

Image of FIG. 2.
FIG. 2.

The temporal evolutions of protons and carbon ions for (a), (b), and (c) in the mixed solid target case at , , and . The red solid line shows the space-charge separation field normalized by . Notice that the fields at t =  are zoomed out by .

Image of FIG. 3.
FIG. 3.

(a) Comparison of maximum proton energies for different cases. The black solid line and dashed line are calculated analytically. (b) The energy spectra of protons for different cases in a mixed target at . Only protons within the central radius contribute to the spectra.

Image of FIG. 4.
FIG. 4.

The temporal evolution of protons and carbon ions for (a) and (b) in C-H case at , , and . The red solid line shows the space-charge field with the right axis and normalized by . Notice that the space-charge fields at are zoomed out by .

Image of FIG. 5.
FIG. 5.

The temporal evolution of protons and carbon ions for (a) and (b) in H-C case at , , and . The red solid line shows the space-charge field with the right axis and normalized by . Notice that the space-charge fields at has been zoomed out by .

Image of FIG. 6.
FIG. 6.

The energy spectra of protons for a mixed target, C-H target, and H-C target at (a) , (b) for density ratio , and (c) for density ratio . Only protons within the central radius contribute to the spectra. (d) Angular distribution of proton energy at for the density ratio .

Image of FIG. 7.
FIG. 7.

The temporal evolution of electrons (a), protons (c) and spatial distribution of the laser field magnitude (b) for in H-C case at . Notice the different scales on the x and y axis. The red solid line in (c) shows the space-charge field with right axis and normalized by . (d) The energy spectra of protons for in H-C case and pure hydrogen targets with thicknesses of and separately at . Only protons within the central radius and longitudinal position contribute to the spectra.

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/content/aip/journal/pop/19/9/10.1063/1.4750050
2012-09-12
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of target composition on proton acceleration in ultraintense laser-thin foil interaction
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/9/10.1063/1.4750050
10.1063/1.4750050
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