Intense high-energy proton beams from petawatt-laser irradiation of solids

被引：1593

作者：

Snavely, RA

Key, MH

Hatchett, SP

Cowan, TE

Roth, M

Phillips, TW

Stoyer, MA

Henry, EA

Sangster, TC

Singh, MS

Wilks, SC

MacKinnon, A

Offenberger, A

Pennington, DM

Yasuike, K

Langdon, AB

Lasinski, BF

Johnson, J

Perry, MD

Campbell, EM

机构：

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

[2] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[3] GSI Lab, Darmstadt, Germany

[4] Univ Alberta, Edmonton, AB T6G 2G7, Canada

[5] Osaka Univ, ILE, Suita, Osaka 565, Japan

[6] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.85.2945

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An intense collimated beam of high-energy protons is emitted normal to the rear surface of thin Solid targets irradiated at 1 PW power and peak intensity 3 x 10(20) Wcm(-2). Up to 48 J (12%) of the laser energy is transferred to 2 X 10(13) protons of energy >10 MeV. The energy spectrum exhibits a sharp high-energy cutoff as high as 58 MeV on the axis of the beam which decreases in energy with increasing off axis angle. Proton induced nuclear processes have been observed and used to characterize the beam.

引用

页码：2945 / 2948

页数：4

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