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Search: WFRF:(Shao Z) > Conference paper

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  • Eliasson, Bengt, et al. (author)
  • Laser radiation pressure acceleration of monoenergetic protons in an ultra-thin foil
  • 2009
  • In: New Developments in Nonlinear Plasma Physics. - : American Institute of Physics. - 9780735407541 ; , s. 35-49
  • Conference paper (peer-reviewed)abstract
    • Wepresent theoretical and numerical studies of the acceleration of monoenergeticprotons in a double layer formed by the laser irradiationof an ultra-thin film. The stability of the foil isinvestigated by direct Vlasov-Maxwell simulations for different sets of laser-plasmaparameters. It is found that the foil is stable, dueto the trapping of both electrons and ions in thethin laser-plasma interaction region, where the electrons are trapped ina potential well composed of the ponderomo-tive potential of thelaser light and the electrostatic potential due to the ions,and the ions are trapped in a potential well composedof the inertial potential in an accelerated frame and theelectrostatic potential due to the electrons. The result is astable double layer, where the trapped ions are accelerated tomonoenergetic energies up to 100 MeV and beyond, which makesthem suitable for medical applications cancer treatment. The underlying physicsof trapped and untapped ions in a double layer isalso investigated theoretically and numerically.
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2.
  • Liu, Chuan S., et al. (author)
  • Laser acceleration of quasi-monoenergetic protons via radiation pressure driven thin foil
  • 2010
  • In: Modern challenges in nonlinear plasma physics. - : AIP. - 9780735408753 ; , s. 104-110
  • Conference paper (peer-reviewed)abstract
    • We present a theoretical and simulation study of laser acceleration of quasi-monoenergetic protons in a thin foil irradiated by high intensity laser light. The underlying physics of radiation pressure acceleration (RPA) is discussed, including the importance of optimal thickness and circularly polarized light for efficient acceleration of ions to quasimonoenergetic beams. Preliminary two-dimensional simulation studies show that certain parameter regimes allow for stabilization of the Rayleigh-Taylor instability and possibility of acceleration of monoenergetic ions to an excess of 200MeV, making them suitable for important applications such as medical cancer therapy and fast ignition. © 2010 American Institute of Physics.
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  • Result 1-2 of 2
Type of publication
conference paper  (2)Undo refine
Type of content
peer-reviewed (2)
Author/Editor
Eliasson, Bengt (2)
Sagdeev, Roald Z. (2)
Shao, Xi (2)
Shukla, Padma Kant (1)
Liu, T-C (1)
Liu, Chuan S (1)
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Liu, Chuan Sheng (1)
Dudnikova, Galina (1)
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University
Umeå University (2)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (2)

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