Intense {gamma}-Ray Source in the Giant-Dipole-Resonance Range Driven by 10-TW Laser Pulses

Journal Article · Fri Sep 05 00:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.101.105002· OSTI ID:21134196

Giulietti, A; Gamucci, A; Gizzi, L A; Labate, L ^[1]; INFN, Sezione di Pisa ^[2]; Bourgeois, N; Marques, J R ^[3]; Ceccotti, T; Dobosz, S; D'Oliveira, P; Monot, P; Popescu, H; Reau, F; Martin, P ^[4]; Davoine, X; Lefebvre, E ^[5]; Galimberti, M; Sarri, G ^[1]; Galy, J; Hamilton, D J ^[6] ; Giulietti, D ^[1]; INFN, Sezione di Pisa ^[2]

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1. Intense Laser Irradiation Laboratory, IPCF, Consiglio Nazionale delle Ricerche, CNR Campus, Pisa (Italy)
2. Italy
3. Laboratoire pour l'Utilisation des Lasers Intenses, CNRS UMR 7605, Ecole Polytechnique, Palaiseau (France)
4. CEA-DSM/DRECAM/SPAM, Gif sur Yvette Cedex (France)
5. Departement de Physique Theorique et Appliquee, CEA/DIF, 91680 Bruyeres-le-Chatel (France)
6. European Commission, JRC Institute for Transuranium Elements, Karlsruhe (Germany)

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{sub {gamma}}<17.5 MeV) was measured, through the radio activation of a gold sample, to be 4x10{sup 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.

• OSTI ID: 21134196
• Journal Information: Physical Review Letters, Vol. 101, Issue 10; Other Information: DOI: 10.1103/PhysRevLett.101.105002; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
ACCELERATION
BREMSSTRAHLUNG
DIPOLES
ELECTRONS
GAMMA RADIATION
GAMMA SOURCES
GOLD
LASERS
MEV RANGE 10-100
NONLINEAR PROBLEMS
PHOTONS
PULSES
RESONANCE
SIMULATION