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Title: Robustness of a tailored hole target in laser-produced collimated proton beam generation

Abstract

A robustness of a thin-foil tailored hole target is demonstrated by particle simulations in laser-produced proton generation. The hole target has a hole at the target rear surface. When an intense short pulse laser illuminates the thin-foil target with the hole, transverse edge fields of an accelerated electron cloud and an ion cloud are shielded by a protuberant part of the hole so that the proton beam divergence is suppressed [Sonobe et al., Phys. Plasmas 12, 073104 (2005)]. This paper presents the robustness of the hole target against laser parameter changes in a laser spot size and in a laser pulse length against a contaminated proton source layer and against a laser alignment error. The 2.5-dimensional particle-in-cell simulations also show that a multiple-hole target is robust against a laser alignment error and a target positioning error. The multihole target may serve as a robust target for practical uses to produce a collimated proton beam.

Authors:
; ; ; ; ; ;  [1];  [2];  [3]
  1. Graduate School of Engineering, Utsunomiya University, 7-1-2 Yohtoh, Utsunomiya 321-8585 (Japan)
  2. (China)
  3. (Japan)
Publication Date:
OSTI Identifier:
20979405
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 101; Journal Issue: 11; Other Information: DOI: 10.1063/1.2740336; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 43 PARTICLE ACCELERATORS; ACCELERATORS; ELECTRONS; FOILS; HOLES; ION SOURCES; LASERS; LAYERS; PLASMA; POSITIONING; PROTON BEAMS; PROTON SOURCES; PROTONS; PULSES; SIMULATION

Citation Formats

Nakamura, M., Kawata, S., Sonobe, R., Kong, Q., Miyazaki, S., Onuma, N., Kikuchi, T., Graduate School of Engineering, Utsunomiya University, 7-1-2 Yohtoh, Utsunomiya 321-8585, Japan and Institute of Modern Physics, Fudan University, Shanghai 200433, and Graduate School of Engineering, Utsunomiya University, 7-1-2 Yohtoh, Utsunomiya 321-8585. Robustness of a tailored hole target in laser-produced collimated proton beam generation. United States: N. p., 2007. Web. doi:10.1063/1.2740336.
Nakamura, M., Kawata, S., Sonobe, R., Kong, Q., Miyazaki, S., Onuma, N., Kikuchi, T., Graduate School of Engineering, Utsunomiya University, 7-1-2 Yohtoh, Utsunomiya 321-8585, Japan and Institute of Modern Physics, Fudan University, Shanghai 200433, & Graduate School of Engineering, Utsunomiya University, 7-1-2 Yohtoh, Utsunomiya 321-8585. Robustness of a tailored hole target in laser-produced collimated proton beam generation. United States. doi:10.1063/1.2740336.
Nakamura, M., Kawata, S., Sonobe, R., Kong, Q., Miyazaki, S., Onuma, N., Kikuchi, T., Graduate School of Engineering, Utsunomiya University, 7-1-2 Yohtoh, Utsunomiya 321-8585, Japan and Institute of Modern Physics, Fudan University, Shanghai 200433, and Graduate School of Engineering, Utsunomiya University, 7-1-2 Yohtoh, Utsunomiya 321-8585. Fri . "Robustness of a tailored hole target in laser-produced collimated proton beam generation". United States. doi:10.1063/1.2740336.
@article{osti_20979405,
title = {Robustness of a tailored hole target in laser-produced collimated proton beam generation},
author = {Nakamura, M. and Kawata, S. and Sonobe, R. and Kong, Q. and Miyazaki, S. and Onuma, N. and Kikuchi, T. and Graduate School of Engineering, Utsunomiya University, 7-1-2 Yohtoh, Utsunomiya 321-8585, Japan and Institute of Modern Physics, Fudan University, Shanghai 200433 and Graduate School of Engineering, Utsunomiya University, 7-1-2 Yohtoh, Utsunomiya 321-8585},
abstractNote = {A robustness of a thin-foil tailored hole target is demonstrated by particle simulations in laser-produced proton generation. The hole target has a hole at the target rear surface. When an intense short pulse laser illuminates the thin-foil target with the hole, transverse edge fields of an accelerated electron cloud and an ion cloud are shielded by a protuberant part of the hole so that the proton beam divergence is suppressed [Sonobe et al., Phys. Plasmas 12, 073104 (2005)]. This paper presents the robustness of the hole target against laser parameter changes in a laser spot size and in a laser pulse length against a contaminated proton source layer and against a laser alignment error. The 2.5-dimensional particle-in-cell simulations also show that a multiple-hole target is robust against a laser alignment error and a target positioning error. The multihole target may serve as a robust target for practical uses to produce a collimated proton beam.},
doi = {10.1063/1.2740336},
journal = {Journal of Applied Physics},
number = 11,
volume = 101,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2007},
month = {Fri Jun 01 00:00:00 EDT 2007}
}
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