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Appl. Sci. 2015, 5(3), 459-471; doi:10.3390/app5030459

Proton Acceleration by Ultrashort Intense Laser Interaction with Microstructured Snow Targets

1
Racah Institute of Physics, Hebrew University, Jerusalem 91904, Israel
2
Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Ken Ledingham
Received: 9 April 2015 / Revised: 29 July 2015 / Accepted: 18 August 2015 / Published: 26 August 2015
(This article belongs to the Special Issue Casting Light on Cancer Therapy)
View Full-Text   |   Download PDF [2826 KB, uploaded 26 August 2015]   |  

Abstract

Enhanced proton acceleration to high energy by relatively modest ultrashort laser pulses and structured dynamic plasma snow targets was demonstrated experimentally. High proton yield emitted to narrow solid angle with energies of up 25 MeV were detected from interaction of a 5 TW laser with snow targets. The high yield was attributed to a carefully planned prepulse and microstructured snow targets. We studied experimentally the minimal energy requirements for the adequate prepulse and we are using PIC simulations to study the dynamics of acceleration process. Based on our simulations, we predict that using the proposed scheme protons can be accelerated to energies above 150 MeV by 100 TW laser systems. View Full-Text
Keywords: proton acceleration; laser plasma interaction; ultrashort intense laser; laser acceleration; laser driven radiation therapy proton acceleration; laser plasma interaction; ultrashort intense laser; laser acceleration; laser driven radiation therapy
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Schleifer, E.; Henis, Z.; Botton, M.; Shavit, O.; Gordon, D.F.; Zigler, A. Proton Acceleration by Ultrashort Intense Laser Interaction with Microstructured Snow Targets. Appl. Sci. 2015, 5, 459-471.

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