Production of proton beams with narrow-band energy spectra from laser-irradiated ultrathin foils

Journal Article · Mon Jan 15 00:00:00 EST 2007 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PHYSREVE.75.015401· OSTI ID:21072274

Robinson, A P. L ^[1]; Gibbon, P ^[2]

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1. Central Laser Facility, Rutherford-Appleton Laboratory, Chilton, Oxon, OX11 0QX (United Kingdom)
2. John von Neumann Institute for Computing, ZAM, Forschungzentrum Juelich GmbH, D-52425, Juelich (Germany)

Three-dimensional gridless particle simulations of proton acceleration via irradiation of a very thin foil by a short-pulse, high-intensity laser have been performed to evaluate recently proposed microstructured target configurations. It is found that a pure proton microdot target does not by itself result in a quasimonoenergetic proton beam. Such a beam can only be produced with a very lightly doped target, in qualitative agreement with one-dimensional theory. The simulations suggest that beam quality in current experiments could be dramatically improved by choosing microdot compositions with a 5-10 times lower proton fraction.

• OSTI ID: 21072274
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 75, Issue 1; Other Information: DOI: 10.1103/PhysRevE.75.015401; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
BEAM-PLASMA SYSTEMS
DOPED MATERIALS
ENERGY SPECTRA
FOILS
IRRADIATION
LASERS
ONE-DIMENSIONAL CALCULATIONS
PLASMA PRODUCTION
PLASMA SIMULATION
PROTON BEAMS
PROTONS
PULSES
THREE-DIMENSIONAL CALCULATIONS