Effect of target composition on proton energy spectra in ultraintense laser-solid interactions

We study how the proton density in a target irradiated by an ultraintense laser affects the proton spectrum, with analytical models and Vlasov simulations. A low relative proton density gives rise to peaks in the energy spectrum. Furthermore, a target with the protons confined to a thin, low density...

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Published in:Physical review letters 2006-01, Vol.96 (3), p.035005-035005, Article 035005
Main Authors: Robinson, A P L, Bell, A R, Kingham, R J
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ENERGY SPECTRA
IRRADIATION
LASERS
LAYERS
PLASMA
PLASMA SIMULATION
PROTON BEAMS
PROTON DENSITY
PROTON RADIOGRAPHY
PROTON SPECTRA
PROTONS
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container_title Physical review letters
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description We study how the proton density in a target irradiated by an ultraintense laser affects the proton spectrum, with analytical models and Vlasov simulations. A low relative proton density gives rise to peaks in the energy spectrum. Furthermore, a target with the protons confined to a thin, low density layer produces a quasimonoenergetic spectrum. This is a simple technique for producing proton beams with a narrow energy spread for proton radiography of laser-plasma interactions.
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subjects 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ENERGY SPECTRA
IRRADIATION
LASERS
LAYERS
PLASMA
PLASMA SIMULATION
PROTON BEAMS
PROTON DENSITY
PROTON RADIOGRAPHY
PROTON SPECTRA
PROTONS
title Effect of target composition on proton energy spectra in ultraintense laser-solid interactions
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