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Enhanced target normal sheath acceleration of protons from intense laser interaction with a cone-tube target

Authors :
Bin Qiao
K. D. Xiao
Changman Zhou
T. W. Huang
Sizhong Wu
Xian-Tu He
S. C. Ruan
Source :
AIP Advances, Vol 6, Iss 1, Pp 015303-015303-8 (2016)
Publication Year :
2016
Publisher :
AIP Publishing LLC, 2016.

Abstract

Laser driven proton acceleration is proposed to be greatly enhanced by using a cone-tube target, which can be easily manufactured by current 3D-print technology. It is observed that energetic electron bunches are generated along the tube and accelerated to a much higher temperature by the combination of ponderomotive force and longitudinal electric field which is induced by the optical confinement of the laser field. As a result, a localized and enhanced sheath field is produced at the rear of the target and the maximum proton energy is about three-fold increased based on the two-dimentional particle-in-cell simulation results. It is demonstrated that by employing this advanced target scheme, the scaling of the proton energy versus the laser intensity is much beyond the normal target normal sheath acceleration (TNSA) case.

Details

Language :
English
ISSN :
21583226
Volume :
6
Issue :
1
Database :
OpenAIRE
Journal :
AIP Advances
Accession number :
edsair.doi.dedup.....13dc1031ecbb69e032ece4e0f15a2831