Cascaded acceleration of proton beams in ultrashort laser-irradiated microtubes

H. C. Wang, S. M. Weng, M. Murakami, Z. M. Sheng, M. Chen, Q. Zhao, J. Zhang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A cascaded ion acceleration scheme is proposed by use of ultrashort laser-irradiated microtubes. When the electrons of a microtube are blown away by intense laser pulses, strong charge-separation electric fields are formed in the microtube along both the axial and radial directions. By controlling the time delay between the laser pulses and a pre-accelerated proton beam injected along the microtube axis, we demonstrate that this proton beam can be further accelerated by the transient axial electric field in the laser-irradiated microtube. Moreover, the collimation of the injected proton beam can be enhanced by the inward radial electric field. Numerical simulations show that this cascaded ion acceleration scheme works efficiently even at non-relativistic laser intensities, and it can be applied to injected proton beams in the energy range from 1 to 100 MeV. Therefore, it is particularly suitable for cascading acceleration of protons to higher energy.

LanguageEnglish
Article number093117
Number of pages5
JournalPhysics of Plasmas
Volume24
Issue number9
Early online date28 Sep 2017
DOIs
Publication statusPublished - 30 Sep 2017

Fingerprint

proton beams
lasers
electric fields
collimation
polarization (charge separation)
pulses
ions
time lag
protons
energy
electrons
simulation

Keywords

  • transition
  • electrostatics
  • chemical compounds
  • lasers
  • nuclear fusion power

Cite this

Wang, H. C., Weng, S. M., Murakami, M., Sheng, Z. M., Chen, M., Zhao, Q., & Zhang, J. (2017). Cascaded acceleration of proton beams in ultrashort laser-irradiated microtubes. Physics of Plasmas, 24(9), [093117]. https://doi.org/10.1063/1.5000104
Wang, H. C. ; Weng, S. M. ; Murakami, M. ; Sheng, Z. M. ; Chen, M. ; Zhao, Q. ; Zhang, J. / Cascaded acceleration of proton beams in ultrashort laser-irradiated microtubes. In: Physics of Plasmas. 2017 ; Vol. 24, No. 9.
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Wang, HC, Weng, SM, Murakami, M, Sheng, ZM, Chen, M, Zhao, Q & Zhang, J 2017, 'Cascaded acceleration of proton beams in ultrashort laser-irradiated microtubes' Physics of Plasmas, vol. 24, no. 9, 093117. https://doi.org/10.1063/1.5000104

Cascaded acceleration of proton beams in ultrashort laser-irradiated microtubes. / Wang, H. C.; Weng, S. M.; Murakami, M.; Sheng, Z. M.; Chen, M.; Zhao, Q.; Zhang, J.

In: Physics of Plasmas, Vol. 24, No. 9, 093117, 30.09.2017.

Research output: Contribution to journalArticle

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