ICF中子针孔成像数值模拟研究  

Numerical simulation for neutron pinhole imaging in ICF

作　　者：陈法新[1] 杨建伦[1] 温树槐[2] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621900 [2]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《强激光与粒子束》2005年第6期883-887,共5页High Power Laser and Particle Beams

基　　金：国家863计划项目资助课题

摘　　要：在激光驱动的惯性约束聚变(ICF)实验中,中子针孔成像能够为不同靶丸设计的性能提供重要的诊断信息。为了能够在实验上获得较好的结果,需要实验前对各种针孔设计方案进行定性和定量的判断。成像的理论计算可简单分为针孔成像和图像解谱两部分,为了解决成像的针孔设计问题,基于蒙特卡罗方法建立了一套模拟中子针孔成像过程的程序,并且通过编写的图像显示程序可以直观地观察到记录介质所成的2维图像,同时可以对图像的某些参数进行判读。Pinhole imaging of the neutron production in laser-driven inertial confinement fusion experiments can provide important information about performance of various capsule designs. In order to get good results in experiments, it is needed to judge performance of various pinhole designs qualitatively or quantitatively before experiment. Calculation of imaging can be simply separated into pinhole imaging and image spectral analysis. In this paper, pinhole imaging is discussed, codes for neutron pinhole imaging and image showing are programmed. The codes can be used to provide theoretical foundation for pinhole designing and simulating data for image analysing.

关 键 词：针孔成像 蒙特卡罗 ICF 

分 类 号：O532.13[理学—等离子体物理] O571.523[理学—物理]