| 中子管非中子产物性质 |
| |
| 引用本文： | 王栋,杨高照.中子管非中子产物性质[J].强激光与粒子束,2012,24(10):2451-2453. |
| |
| 作者姓名： | 王栋 杨高照 |
| |
| 作者单位： | 1.中国工程物理研究院 核物理与化学研究所, 四川 绵阳 621 900 |
| |
| 基金项目： | 中国工程物理研究院科学技术发展基金项目(2012B0103003) |
| |
| 摘 要： | 采用两只经过标定的ST401闪烁探测器，测量了脉冲中子管的中子产额，在其中一只探测器前端增加铅板屏蔽，1 cm的铅屏蔽使探测器输出减少了18.20%，在加速器中子源上进行的类似实验表明,0.5 cm的铅使探测器的输出减少了2.90%。对两个中子源上测量的情况进行了蒙特卡罗模拟，加速器实验与模拟符合较好，脉冲中子管实验差别较大。对实验和模拟的情况进行了分析，结果表明:中子管除产生中子外，还会产生数量较多的轫致辐射X射线，这些X射线对准确测量中子管中子产额将造成不良影响。
|
| 关 键 词： | 中子管 非中子产物 蒙特卡罗模拟 中子产额测量 |
| 收稿时间： | 2011/12/5 |
Properties of non-DT-neutron products in neutron tubes |
| |
| Wang Dong
,
Yang Gaozhao.Properties of non-DT-neutron products in neutron tubes[J].High Power Laser and Particle Beams,2012,24(10):2451-2453. |
| |
| Authors: | Wang Dong Yang Gaozhao |
| |
| Institution: | 1.Institute of Nuclear Physics and Chemistry,CAEP,P.O.Box 919-212,Mianyang 621900,China |
| |
| Abstract: | By using two calibrated ST401 scintillation detectors, the neutron yield of a pulse neutron tube was measured, and by adding a Pb shield before one detector, the influence of the Pb shield on neutron flux was determined. The 1 cm thick Pb shield decreases the neutron flux by 18.20%. The influence of the Pb shield on accelerator neutron sources was determined the same way. The 0.5 cm thick Pb shield decreases the neutron flux by 2.90%. The measurements of two neutron sources were simulated by Monte Carlo. Compared with the neutron tube experiment, the accelerator experiment results agree with the simulation better. The theoretical analysis shows that neutron tubes can generate much bremsstrahlung X rays, which may have harmful impact on the measurement of neutron tube yields. |
| |
| Keywords: | neutron tube non-DT-neutron product Monte Carlo simulation measurement of neutron yield |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《强激光与粒子束》浏览原始摘要信息 |
| 点击此处可从《强激光与粒子束》下载免费的PDF全文 |
