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.
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页数：6
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