Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 13,
  • Issue 1,
  • pp. 22-27
  • (2009)

Improvement of Proton Beam Quality from the High-intensity Short Pulse Laser Interaction with a Micro-structured Target

Open Access Open Access

Abstract

Target design study to improve the quality of an accelerated proton beam from the interaction of a high-intensity short pulse laser with an overdense plasma slab has been accomplished by using a two-dimensional, fully electromagnetic and relativistic particle-in-cell (PIC) simulation. The target consists of a thin core part and a thick peripheral part of equivalent plasma densities, while the ratio of the radius of the core part to the laser spot size, and the position of the peripheral part relative to the fixed core part were varied. The positive effects of this core-peripheral target structure could be expected from the knowledge of the typical target normal sheath acceleration (TNSA) mechanism in a laser-plasma interaction, and were apparently evidenced from the comparison with the case of a conventional simple planar target and the case of the transversal size reduction of the simple planar target. Improvements of the beam qualities including the collimation, the forward directionality, and the beam divergence were verified by detailed analysis of relativistic momentum, angular directionality, and the spatial density map of the accelerated protons.

© 2009 Optical Society of Korea

PDF Article
More Like This
Intense laser-driven energetic proton beams from solid density targets

C. T. Zhou and X. T. He
Opt. Lett. 32(16) 2444-2446 (2007)

Intense high-quality medical proton beams via laser fields

Benjamin J. Galow, Zoltán Harman, and Christoph H. Keitel
Opt. Express 18(25) 25950-25957 (2010)

Ultrafast electron and proton bunches correlation in laser–solid matter experiments

F. G. Bisesto, M. Galletti, M. P. Anania, G. Costa, M. Ferrario, R. Pompili, A. Poyé, F. Consoli, M. Salvadori, M. Cipriani, C. Verona, and A. Zigler
Opt. Lett. 45(19) 5575-5578 (2020)

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.


Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved