神光Ⅲ主机装置内爆中子和伽马辐射特性的数值模拟

郑建华; 晏骥; 苏明; 赵宗清; 江少恩; 马彦; 付元光; 李刚; 张宝印; 邓力

doi:10.11884/HPLPB201527.112007

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

神光Ⅲ主机装置内爆中子和伽马辐射特性的数值模拟

doi: 10.11884/HPLPB201527.112007

1.
中国工程物理研究院激光聚变研究中心, 四川绵阳 621 900;
2.
清华大学工程物理系,北京 1 00084;
3.
北京大学应用物理与技术研究中心, 北京 1 00871 ;
4.
北京应用物理与计算数学研究所, 北京 1 00094;
5.
中物院高性能数值模拟软件中心, 北京 1 00088

详细信息

通讯作者:
江少恩

计量
- 文章访问数: 1374
- HTML全文浏览量: 252
- PDF下载量: 369
- 被引次数: 0
出版历程
- 收稿日期: 2015-07-24
- 修回日期: 2015-09-10
- 刊出日期: 2015-10-27

Numerical study on characteristics of neutron and gamma radiations from implosions on Shenguang Ⅲ laser facility

1.
Research Center of Laser Fusion,CAEP,P.O.Box 919-986,Mianyang 621900,China;
2.
Department of Engineering Physics,Tsinghua University,Beijing 100084,China;
3.
Center for Applied Physics and Technology,Peking University,Beijing 100871,China;
4.
Institute of Applied Physics and Computational Mathematics,Beijing 100094,China;
5.
Software Center for High Performance Numerical Simulation,CAEP,Beijing 100088,China

摘要

摘要: 采用三维中子-光子耦合输运蒙特卡罗程序JMCT，对神光Ⅲ主机靶场进行精细几何建模，使用该模型通过计算获得了DD内爆聚变中子及伽马射线在靶场环境的空间分布以及能谱和飞行时间谱。根据计算结果对散射中子和伽马射线的特性进行了讨论，并定量分析了散射中子噪声和伽马噪声分别对下散中子产额测量和高能X射线照相的影响。研究结果表明：必须进行有效的辐射屏蔽设计才能使下散中子产额测量和高能X射线照相的信噪比优于10。
- 惯性约束聚变 /
- 神光Ⅲ主机 /
- 中子 /
- 伽马 /
- 蒙特卡罗
Abstract: A detailed model of Shenguang Ⅲ target bay was developed by JMCT, a 3D neutron and photon transport Monte Carlo code. Using this model, calculations were performed to obtain the spatial distribution, energy spectra and time of flight spectra of fusion neutron and gamma radiations from DD implosions. Characteristics of scattered neutron and gamma radiations were discussed based on the calculated results. In particular, the impacts of neutron noise on down-scattered neutron yield measurement and gamma noise on high energy X-ray radiography were analyzed quantitatively. The results showed that in order to obtain a signal-to-noise ratio better than 10, effective radiation shielding was required for both down scattered neutron yield measurement and high energy X-ray radiography.
- ICF /
- Shenguang Ⅲ /
- neutron /
- gamma /
- Monte Carlo