Momentum distribution of accelerated ions in ultra-intense laser-plasma interactions via neutron spectroscopy

被引：28

作者：

Habara, H ^{[1
]}

Kodama, R ^{[1
]}

Sentoku, Y ^{[1
]}

Izumi, N ^{[1
]}

Kitagawa, Y ^{[1
]}

Tanaka, KA ^{[1
]}

Mima, K ^{[1
]}

Yamanaka, T ^{[1
]}

机构：

[1] Osaka Univ, Dept Laser Engn, Suita, Osaka 5650871, Japan

来源：

PHYSICS OF PLASMAS | 2003年 / 10卷 / 09期

关键词：

D O I：

10.1063/1.1593650

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：

The dependence of neutron spectra on the incident laser polarization has been studied to elucidate ion acceleration processes in ultra-intense laser-plasma interactions. Obliquely incident, 50-100 TW (450-800 fs) laser pulses irradiated a deuterated plastic solid target at 10(19) W/cm(2) with both s- and p-polarizations. Neutron spectra from the deuteron-deuteron d(d,n)He-3 nuclear reactions show the ion acceleration into the target in the direction of the target normal for both polarizations. The experiment and particle-in-cell simulations indicate the ions are accelerated inside the target by an intense electrostatic field created by charge displacement at the laser focus. (C) 2003 American Institute of Physics.

引用

页码：3712 / 3716

页数：5

共 25 条

[1] Inertial fusion fast ignitor: Igniting pulse parameter window vs the penetration depth of the heating particles and the density of the precompressed fuel [J].