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Title: Laser Radiation Pressure Acceleration of Monoenergetic Protons in an Ultra-Thin Foil

Abstract

We present theoretical and numerical studies of the acceleration of monoenergetic protons in a double layer formed by the laser irradiation of an ultra-thin film. The stability of the foil is investigated by direct Vlasov-Maxwell simulations for different sets of laser-plasma parameters. It is found that the foil is stable, due to the trapping of both electrons and ions in the thin laser-plasma interaction region, where the electrons are trapped in a potential well composed of the ponderomo-tive potential of the laser light and the electrostatic potential due to the ions, and the ions are trapped in a potential well composed of the inertial potential in an accelerated frame and the electrostatic potential due to the electrons. The result is a stable double layer, where the trapped ions are accelerated to monoenergetic energies up to 100 MeV and beyond, which makes them suitable for medical applications cancer treatment. The underlying physics of trapped and untapped ions in a double layer is also investigated theoretically and numerically.

Authors:
 [1]; ; ;  [2];  [1]
  1. Institut fuer Theoretische Physik IV, Fakultaet fuer Physik und Astronomie, Ruhr-Universitaet Bochum, D-44780 Bochum (Germany)
  2. Department of Physics, University of Maryland, College Park, MD 20742 (United States)
Publication Date:
OSTI Identifier:
21335675
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1188; Journal Issue: 1; Conference: 2009 ICTP summer college on plasma physics; International symposium on cutting edge plasma physics, Trieste (Italy), 10-28 Aug 2009; Other Information: DOI: 10.1063/1.3266813; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ABLATION; ACCELERATION; BEAM PRODUCTION; BEAM-PLASMA SYSTEMS; BOLTZMANN-VLASOV EQUATION; ELECTRONS; FOILS; IONS; LASER RADIATION; LASER-PRODUCED PLASMA; LAYERS; MEV RANGE; NUMERICAL ANALYSIS; PLASMA HEATING; POTENTIALS; PROTON BEAMS; PROTONS; THIN FILMS; TRAPPING

Citation Formats

Eliasson, Bengt, Department of Physics, Umeaa University, SE-90 187 Umeaa, Liu, Chuan S, Xi, Shao, Sagdeev, Roald Z, Shukla, Padma K, and Scottish Universities Physics Alliance, Department of Physics, University of Strathclyde, Glasgow G4 ONG. Laser Radiation Pressure Acceleration of Monoenergetic Protons in an Ultra-Thin Foil. United States: N. p., 2009. Web. doi:10.1063/1.3266813.
Eliasson, Bengt, Department of Physics, Umeaa University, SE-90 187 Umeaa, Liu, Chuan S, Xi, Shao, Sagdeev, Roald Z, Shukla, Padma K, & Scottish Universities Physics Alliance, Department of Physics, University of Strathclyde, Glasgow G4 ONG. Laser Radiation Pressure Acceleration of Monoenergetic Protons in an Ultra-Thin Foil. United States. https://doi.org/10.1063/1.3266813
Eliasson, Bengt, Department of Physics, Umeaa University, SE-90 187 Umeaa, Liu, Chuan S, Xi, Shao, Sagdeev, Roald Z, Shukla, Padma K, and Scottish Universities Physics Alliance, Department of Physics, University of Strathclyde, Glasgow G4 ONG. 2009. "Laser Radiation Pressure Acceleration of Monoenergetic Protons in an Ultra-Thin Foil". United States. https://doi.org/10.1063/1.3266813.
@article{osti_21335675,
title = {Laser Radiation Pressure Acceleration of Monoenergetic Protons in an Ultra-Thin Foil},
author = {Eliasson, Bengt and Department of Physics, Umeaa University, SE-90 187 Umeaa and Liu, Chuan S and Xi, Shao and Sagdeev, Roald Z and Shukla, Padma K and Scottish Universities Physics Alliance, Department of Physics, University of Strathclyde, Glasgow G4 ONG},
abstractNote = {We present theoretical and numerical studies of the acceleration of monoenergetic protons in a double layer formed by the laser irradiation of an ultra-thin film. The stability of the foil is investigated by direct Vlasov-Maxwell simulations for different sets of laser-plasma parameters. It is found that the foil is stable, due to the trapping of both electrons and ions in the thin laser-plasma interaction region, where the electrons are trapped in a potential well composed of the ponderomo-tive potential of the laser light and the electrostatic potential due to the ions, and the ions are trapped in a potential well composed of the inertial potential in an accelerated frame and the electrostatic potential due to the electrons. The result is a stable double layer, where the trapped ions are accelerated to monoenergetic energies up to 100 MeV and beyond, which makes them suitable for medical applications cancer treatment. The underlying physics of trapped and untapped ions in a double layer is also investigated theoretically and numerically.},
doi = {10.1063/1.3266813},
url = {https://www.osti.gov/biblio/21335675}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1188,
place = {United States},
year = {2009},
month = {11}
}