Title: Intense Gamma-Ray Source in the Giant-Dipole-Resonance Range Driven by 10-TW Laser Pulses
Authors: GIULIETTI A.BOURGEOIS N.CECCOTTI T.DAVOINE X.DOBOSZ S.D'OLIVEIRA P.GALIMBERTI M.GALY JeanGAMUCCI A.GIULIETTI D.GIZZI L. A.LEFEBVRE E.LABATE L.MARQUÈS J. R.MONOT P.POPESCU H.REAU F.SARRI G.TOMASSINI P.MARTIN P.HAMILTON D.j.
Citation: PHYSICAL REVIEW LETTERS vol. 101 p. 105002
Publisher: AMERICAN PHYSICAL SOC
Publication Year: 2008
JRC N°: JRC47505
ISSN: 0031-9007
URI: http://link.aps.org/abstract/PRL/v101/e105002
http://publications.jrc.ec.europa.eu/repository/handle/JRC47505
DOI: 10.1103/PhysRevLett.101.105002
Type: Articles in periodicals and books
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<17.5 MeV) was measured, through the radio activation of a gold sample, to be 4×108 photons per joule of laser energy. This novel all-optical, compact, and efficient electron- source is suitable for photonuclear studies and medical uses.
JRC Directorate:Nuclear Safety and Security

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