Near monochromatic 20 Me V proton acceleration using fs laser irradiating Au foils in target normal sheath acceleration regime

Journal Article · Fri Apr 15 00:00:00 EDT 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4945637· OSTI ID:22599145

Ceccio, G.; Cannavò, A. ^[1]; Cutroneo, M. ^[2]; Batani, D.; Boutoux, G.; Jakubowska, K.; Ducret, J. E. ^[3]

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1. Department of Physics Sciences-MIFT, Messina University, V.le F.S. d'Alcontres 31, 98166 S. Agata, Messina (Italy)
2. Nuclear Physics Institute, ASCR, 250 68 Rez (Czech Republic)
3. CELIA, Université de Bordeaux 1, UMR5107–CNRS - CEA, Talence (France)

A 200 mJ laser pulse energy, 39 fs-pulse duration, 10 μm focal spot, p-polarized radiation has been employed to irradiate thin Au foils to produce proton acceleration in the forward direction. Gold foils were employed to produce high density relativistic electrons emission in the forward direction to generate a high electric field driving the ion acceleration. Measurements were performed by changing the focal position in respect of the target surface. Proton acceleration was monitored using fast SiC detectors in time-of-flight configuration. A high proton energy, up to about 20 Me V, with a narrow energy distribution, was obtained in particular conditions depending on the laser parameters, the irradiation conditions, and a target optimization.

• OSTI ID: 22599145
• Journal Information: Physics of Plasmas, Vol. 23, Issue 4; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACCELERATION
CONFIGURATION
DENSITY
ELECTRIC FIELDS
ELECTRON EMISSION
ELECTRONS
ENERGY SPECTRA
FOILS
GOLD
IRRADIATION
LASERS
MONITORS
MONOCHROMATIC RADIATION
PROTONS
PULSES
RELATIVISTIC RANGE
SILICON CARBIDES
TIME-OF-FLIGHT METHOD