Generation of quasi-monoenergetic protons from thin multi-ion foils by a combination of laser radiation pressure acceleration and shielded Coulomb repulsion

Tung-Chang Liu, Xi Shao, Chuan-Sheng Liu, Minqing He, Bengt Eliasson, Vipin Tripathi, Jao-Jang Su, Jyhpung Wang, Shih-Hung Chen

Research output: Contribution to journalArticle

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Abstract

We study theoretically and numerically the acceleration of protons by a combination of laser radiation pressure acceleration and Coulomb repulsion of carbon ions in a multi-ion thin foil made of carbon and hydrogen. The carbon layer helps to delay the proton layer from disruption due to the Rayleigh–Taylor instability, to maintain the quasi-monoenergetic proton layer and to accelerate it by the electron-shielded Coulomb repulsion for much longer duration than the acceleration time using single-ion hydrogen foils. Particle-in-cell simulations with a normalized peak laser amplitude of a_0 = 5 show a resulting quasi-monoenergetic proton energy of about 70 MeV with the foil made of 90% carbon and 10% hydrogen, in contrast to 10 MeV using a single-ion hydrogen foil. An analytical model is presented to explain quantitatively the proton energy evolution; this model is in agreement with the simulation results. The energy dependence of the quasi-monoenergetic proton beam on the concentration of carbon and hydrogen is also studied.
Original languageEnglish
Article number025026
Number of pages16
JournalNew Journal of Physics
Volume15
DOIs
Publication statusPublished - 19 Feb 2013

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radiation pressure
foils
laser beams
protons
carbon
hydrogen ions
ions
proton energy
hydrogen
proton beams
simulation
cells
lasers
electrons
energy

Keywords

  • particle-in-cell
  • ion acceleration
  • laser
  • quasi-monoenergetic protons
  • thin multi-ion foils
  • laser radiation pressure acceleration
  • shielded Coulomb repulsion

Cite this

Liu, Tung-Chang ; Shao, Xi ; Liu, Chuan-Sheng ; He, Minqing ; Eliasson, Bengt ; Tripathi, Vipin ; Su, Jao-Jang ; Wang, Jyhpung ; Chen, Shih-Hung. / Generation of quasi-monoenergetic protons from thin multi-ion foils by a combination of laser radiation pressure acceleration and shielded Coulomb repulsion. In: New Journal of Physics. 2013 ; Vol. 15.
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abstract = "We study theoretically and numerically the acceleration of protons by a combination of laser radiation pressure acceleration and Coulomb repulsion of carbon ions in a multi-ion thin foil made of carbon and hydrogen. The carbon layer helps to delay the proton layer from disruption due to the Rayleigh–Taylor instability, to maintain the quasi-monoenergetic proton layer and to accelerate it by the electron-shielded Coulomb repulsion for much longer duration than the acceleration time using single-ion hydrogen foils. Particle-in-cell simulations with a normalized peak laser amplitude of a_0 = 5 show a resulting quasi-monoenergetic proton energy of about 70 MeV with the foil made of 90{\%} carbon and 10{\%} hydrogen, in contrast to 10 MeV using a single-ion hydrogen foil. An analytical model is presented to explain quantitatively the proton energy evolution; this model is in agreement with the simulation results. The energy dependence of the quasi-monoenergetic proton beam on the concentration of carbon and hydrogen is also studied.",
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Generation of quasi-monoenergetic protons from thin multi-ion foils by a combination of laser radiation pressure acceleration and shielded Coulomb repulsion. / Liu, Tung-Chang; Shao, Xi; Liu, Chuan-Sheng; He, Minqing; Eliasson, Bengt; Tripathi, Vipin; Su, Jao-Jang; Wang, Jyhpung; Chen, Shih-Hung.

In: New Journal of Physics, Vol. 15, 025026, 19.02.2013.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Generation of quasi-monoenergetic protons from thin multi-ion foils by a combination of laser radiation pressure acceleration and shielded Coulomb repulsion

AU - Liu, Tung-Chang

AU - Shao, Xi

AU - Liu, Chuan-Sheng

AU - He, Minqing

AU - Eliasson, Bengt

AU - Tripathi, Vipin

AU - Su, Jao-Jang

AU - Wang, Jyhpung

AU - Chen, Shih-Hung

PY - 2013/2/19

Y1 - 2013/2/19

N2 - We study theoretically and numerically the acceleration of protons by a combination of laser radiation pressure acceleration and Coulomb repulsion of carbon ions in a multi-ion thin foil made of carbon and hydrogen. The carbon layer helps to delay the proton layer from disruption due to the Rayleigh–Taylor instability, to maintain the quasi-monoenergetic proton layer and to accelerate it by the electron-shielded Coulomb repulsion for much longer duration than the acceleration time using single-ion hydrogen foils. Particle-in-cell simulations with a normalized peak laser amplitude of a_0 = 5 show a resulting quasi-monoenergetic proton energy of about 70 MeV with the foil made of 90% carbon and 10% hydrogen, in contrast to 10 MeV using a single-ion hydrogen foil. An analytical model is presented to explain quantitatively the proton energy evolution; this model is in agreement with the simulation results. The energy dependence of the quasi-monoenergetic proton beam on the concentration of carbon and hydrogen is also studied.

AB - We study theoretically and numerically the acceleration of protons by a combination of laser radiation pressure acceleration and Coulomb repulsion of carbon ions in a multi-ion thin foil made of carbon and hydrogen. The carbon layer helps to delay the proton layer from disruption due to the Rayleigh–Taylor instability, to maintain the quasi-monoenergetic proton layer and to accelerate it by the electron-shielded Coulomb repulsion for much longer duration than the acceleration time using single-ion hydrogen foils. Particle-in-cell simulations with a normalized peak laser amplitude of a_0 = 5 show a resulting quasi-monoenergetic proton energy of about 70 MeV with the foil made of 90% carbon and 10% hydrogen, in contrast to 10 MeV using a single-ion hydrogen foil. An analytical model is presented to explain quantitatively the proton energy evolution; this model is in agreement with the simulation results. The energy dependence of the quasi-monoenergetic proton beam on the concentration of carbon and hydrogen is also studied.

KW - particle-in-cell

KW - ion acceleration

KW - laser

KW - quasi-monoenergetic protons

KW - thin multi-ion foils

KW - laser radiation pressure acceleration

KW - shielded Coulomb repulsion

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DO - 10.1088/1367-2630/15/2/025026

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