Ultralow emittance, multi-MeV proton beams from a laser virtual-cathode plasma accelerator -: art. no. 204801

被引：525

作者：

Cowan, TE ^{[1
]}

Fuchs, J

Ruhl, H

Kemp, A

Audebert, P

Roth, M

Stephens, R

Barton, I

Blazevic, A

Brambrink, E

Cobble, J

Fernández, J

Gauthier, JC

Geissel, M

Hegelich, M

Kaae, J

Karsch, S

Le Sage, GP

Letzring, S

Manclossi, M

Meyroneinc, S

Newkirk, A

Pépin, H

Renard-LeGalloudec, N

机构：

[1] Gen Atom, San Diego, CA 92121 USA

[2] Univ Paris 06, Lab Utilisat Lasers Intenses, UMR 7605, CNRS CEA, F-91128 Palaiseau, France

[3] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany

[4] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[5] Max Planck Inst Quantum Opt, Garching, Germany

[6] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[7] Ecole Polytech, ENSTA, Lab Opt Appl, F-91761 Palaiseau, France

[8] Ctr Protontherapie Orsay, F-91402 Orsay, France

[9] Univ Nevada, Dept Phys, Reno, NV 89557 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.92.204801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The laminarity of high-current multi-MeV proton beams produced by irradiating thin metallic foils with ultraintense lasers has been measured. For proton energies >10 MeV, the transverse and longitudinal emittance are, respectively, <0.004 mm mrad and <10(-4) eV s, i.e., at least 100-fold and may be as much as 10(4)-fold better than conventional accelerator beams. The fast acceleration being electrostatic from an initially cold surface, only collisions with the accelerating fast electrons appear to limit the beam laminarity. The ion beam source size is measured to be <15 mum (FWHM) for proton energies >10 MeV.

引用

页码：204801 / 1

页数：4

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