Intense γ-ray source in the giant-dipole-resonance range driven by 10-TW laser pulses

被引：105

作者：

Giulietti, A. ^{[1
,2
]}

Bourgeois, N. ^{[3
]}

Ceccotti, T. ^{[4
]}

Davoine, X. ^{[5
]}

Dobosz, S. ^{[4
]}

D'Oliveira, P. ^{[4
]}

Galimberti, M. ^{[1
]}

Galy, J. ^{[6
]}

Gamucci, A. ^{[1
,2
]}

Giulietti, D. ^{[1
,2
,7
]}

Gizzi, L. A. ^{[1
,2
]}

Hamilton, D. J. ^{[6
]}

Lefebvre, E. ^{[5
]}

Labate, L. ^{[1
,2
]}

Marques, J. R.

Monot, P. ^{[4
]}

Popescu, H. ^{[4
]}

Reau, F. ^{[4
]}

Sarri, G. ^{[1
]}

Tomassini, P. ^{[1
,8
]}

Martin, P. ^{[4
]}

机构：

[1] CNR, Intense Laser Irradiat Lab, IPCF, I-56100 Pisa, Italy

[2] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy

[3] Ecole Polytech, CNRS, Lab Utilisat Lasers Intenses, UMR 7605, F-91128 Palaiseau, France

[4] CEA, DSM DRECAM SPAM, Gif Sur Yvette, France

[5] CEA, Dept Phys Theor & Appl, DIF, F-91680 Bruyeres Le Chatel, France

[6] Commiss European Communities, Joint Res Ctr, Inst Transuranium Elements, D-7500 Karlsruhe, Germany

[7] Univ Pisa, Dipartimento Fis, Pisa, Italy

[8] Ist Nazl Fis Nucl, Sez Milano, Milan, Italy

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.101.105002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

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