A gamma-ray source with an intense component around the giant dipole resonance for photonuclear absorption has been obtained via bremsstrahlung of electron bunches driven by a 10-TW tabletop laser. 3D particle-in-cell simulation proves the achievement of a nonlinear regime leading to efficient acceleration of several sequential electron bunches per each laser pulse. The rate of the gamma-ray yield in the giant dipole resonance region (8 < E(gamma)< 17.5 MeV) was measured, through the radio activation of a gold sample, to be 4x10(8) photons per joule of laser energy. This novel all-optical, compact, and efficient electron-gamma source is suitable for photonuclear studies and medical uses.

Intense gamma-ray source in the giant-dipole-resonance range driven by 10-TW laser pulses RID B-9835-2009 RID G-4487-2011 RID A-5215-2011

GIULIETTI, DANILO;
2008-01-01

Abstract

A gamma-ray source with an intense component around the giant dipole resonance for photonuclear absorption has been obtained via bremsstrahlung of electron bunches driven by a 10-TW tabletop laser. 3D particle-in-cell simulation proves the achievement of a nonlinear regime leading to efficient acceleration of several sequential electron bunches per each laser pulse. The rate of the gamma-ray yield in the giant dipole resonance region (8 < E(gamma)< 17.5 MeV) was measured, through the radio activation of a gold sample, to be 4x10(8) photons per joule of laser energy. This novel all-optical, compact, and efficient electron-gamma source is suitable for photonuclear studies and medical uses.
2008
Giulietti, A; Bourgeois, N; Ceccotti, T; Davoine, X; Dobosz, S; D'Oliveira, P; Galimberti, M; Galy, J; Gamucci, A; Giulietti, Danilo; Gizzi, La; Hamilton, Dj; Lefebvre, E; Labate, L; Marques, Jr; Monot, P; Popescu, H; Reau, F; Sarri, G; Tomassini, P; Martin, P.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/126645
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