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Laser-driven proton acceleration using a conical nanobrush target
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10.1063/1.4714809
/content/aip/journal/pop/19/5/10.1063/1.4714809
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/5/10.1063/1.4714809
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

A schematic of high-Z material conical nanobrush target with open angle and density. A hydrogen layer of adheres to the rear side of the conical nanobrush target.

Image of FIG. 2.
FIG. 2.

Field energy density () distributions at time of: (a) a nanobrush target and (b) a conical nanobrush target.

Image of FIG. 3.
FIG. 3.

Energy spectra of hot electrons through the rear sides of the plain, nanobrush, and conical nanobrush targets: we include only the hot electrons (0.5–10.0 MeV) with forward velocity through the rear surface in .

Image of FIG. 4.
FIG. 4.

Electric field Ex distributions at : (a) sheath field distribution in the y direction at beyond the rear surfaces of all three targets; (b) Ex distribution on the laser axis.

Image of FIG. 5.
FIG. 5.

(a) Total-energy histories of protons in a time interval and (b) increment of total-energy histories versus time.

Image of FIG. 6.
FIG. 6.

Proton energy spectra of all three targets at time . The peak proton energies for the conical nanobrush, plain, and nanobrush targets are 14, 18, and 24 MeV, respectively. The average proton energies for the conical nanobrush, plain, and nanobrush targets are 11.74, 5.71, and 8.63 MeV, respectively.

Image of FIG. 7.
FIG. 7.

Proton angle of the nanobrush target at time . The divergence angle is .

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/content/aip/journal/pop/19/5/10.1063/1.4714809
2012-05-16
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Laser-driven proton acceleration using a conical nanobrush target
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/5/10.1063/1.4714809
10.1063/1.4714809
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