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

Journal Article · Fri Jan 15 04:00:00 EST 2016 · AIP Advances

DOI:https://doi.org/10.1063/1.4939814· OSTI ID:22492414

Xiao, K. D.; Huang, T. W. ^[1]; Wu, S. Z. ^[2]; Ruan, S. C. ^[3]; He, X. T. ^[1]

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1. Center for Applied Physics and Technology, HEDPS, and School of Physics, Peking University, Beijing 100871 (China)
2. Institute of Applied Physics and Computational Mathematics, Beijing 100094 (China)
3. College of Electronic Science and Technology, Shenzhen University, Shenzhen 518060 (China)

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.

• OSTI ID: 22492414
• Journal Information: AIP Advances, Journal Name: AIP Advances Journal Issue: 1 Vol. 6; ISSN AAIDBI; ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
BEAM BUNCHING
CONES
ELECTRIC CURRENTS
ELECTRIC FIELDS
LASER RADIATION
LASER TARGETS
LASER-PRODUCED PLASMA
LASERS
PARTICLES
PONDEROMOTIVE FORCE
PROTONS
TAIL ELECTRONS