Neutron production in ultraintense laser interactions with carbon-deuterated plasma at intensities of 1018 W cm-2

被引：12

作者：

Youssef, A. ^{[1
]}

Kodama, R. ^{[2
,3
]}

机构：

[1] Sohag Univ, Fac Sci, Dept Phys, Sohag 82524, Egypt

[2] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan

[3] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

来源：

NUCLEAR FUSION | 2010年 / 50卷 / 03期

关键词：

CROSS-SECTIONS; EMISSION; ILE;

D O I：

10.1088/0029-5515/50/3/035010

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：

Wide-range neutron energy spectra that are produced when an ultraintense laser with an intensity of 3 x 10(18) W cm(-2) is focused on a CD2 target have been studied. The experimentally observed spectra and numerically calculated ones, by a three-dimensional Monte Carlo code, indicate that the energy range of the emitted neutrons is larger than that of the D(d,n)He-3 reaction. The reactions that can participate in neutron production and their relative importance have been analysed. An explanation for the measured spectra is introduced by taking into account the C-12(d,n)N-13 and D((12)c,n)N-13 reactions. These reactions strongly participate in neutron production due to their high cross sections. Moreover, the neutrons from these reactions will overlap the neutrons from the D(d,n)He-3 reaction, including the 2.45MeV neutrons, with increasing energy of the accelerated ions under higher irradiances.

引用

页数：6