Neutron production by 200 mJ ultrashort laser pulses

被引：201

作者：

Pretzler, G ^{[1
]}

Saemann, A

Pukhov, A

Rudolph, D

Schatz, T

Schramm, U

Thirolf, P

Habs, D

Eidmann, K

Tsakiris, GD

Meyer-ter-Vehn, J

Witte, KJ

机构：

[1] Max Planck Inst Quantenopt, D-85748 Garching, Germany

[2] LMU Munchen, Sekt Phys, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW E | 1998年 / 58卷 / 01期

关键词：

D O I：

10.1103/PhysRevE.58.1165

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We report the observation of neutrons rf:leased from d(d,n) He-3 fusion reactions in the focus of 200 mJ, 160 fs Ti:sapphire laser pulses on a deuterated polyethylene target. Optimizing the fast electron and ion generation by applying a well-defined prepulse led to an average rate of 140 neutrons per shot. Furthermore, the production of a substantial number of MeV gamma rays could be observed. The occurrence of neutrons and gamma rays is attributed to the formation and explosion of a relativistic plasma channel in the laser focus, which is confirmed by numerical calculations.

引用

页码：1165 / 1168

页数：4

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