Manipulation of laser-accelerated proton beam profiles by nanostructured and microstructured targets

Manipulation of laser-accelerated proton beam profiles by nanostructured and microstructured targets Nanostructured and microstructured thin foils have been fabricated and used experimentally as targets to manipulate the spatial profile of proton bunches accelerated through the interaction with high intensity laser pulses (6×1019  W/cm2). Monolayers of polystyrene nanospheres were placed on the rear surfaces of thin plastic targets to improve the spatial homogeneity of the accelerated proton beams. Moreover, thin targets with grating structures of various configurations on their rear sides were used to modify the proton beam divergence. Experimental results are presented, discussed, and supported by 3D particle-in-cell numerical simulations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review Accelerators and Beams American Physical Society (APS)

Manipulation of laser-accelerated proton beam profiles by nanostructured and microstructured targets

Abstract

Nanostructured and microstructured thin foils have been fabricated and used experimentally as targets to manipulate the spatial profile of proton bunches accelerated through the interaction with high intensity laser pulses (6×1019  W/cm2). Monolayers of polystyrene nanospheres were placed on the rear surfaces of thin plastic targets to improve the spatial homogeneity of the accelerated proton beams. Moreover, thin targets with grating structures of various configurations on their rear sides were used to modify the proton beam divergence. Experimental results are presented, discussed, and supported by 3D particle-in-cell numerical simulations.
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Publisher
American Physical Society
Copyright
Copyright © Published by the American Physical Society
eISSN
2469-9888
D.O.I.
10.1103/PhysRevAccelBeams.20.081301
Publisher site
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Abstract

Nanostructured and microstructured thin foils have been fabricated and used experimentally as targets to manipulate the spatial profile of proton bunches accelerated through the interaction with high intensity laser pulses (6×1019  W/cm2). Monolayers of polystyrene nanospheres were placed on the rear surfaces of thin plastic targets to improve the spatial homogeneity of the accelerated proton beams. Moreover, thin targets with grating structures of various configurations on their rear sides were used to modify the proton beam divergence. Experimental results are presented, discussed, and supported by 3D particle-in-cell numerical simulations.

Journal

Physical Review Accelerators and BeamsAmerican Physical Society (APS)

Published: Aug 1, 2017

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