基于Al_2O_3单晶闪烁屏和CCD相机的脉冲离子束束流截面测量  

Measurement of Pulsed Ion Beam Profile Based on Al_2O_3 Crystal Scintillator and CCD Camera

作　　者：王小胡[1] 杨振[2] 李杰[2] 彭宇飞[2] 龙继东[2] 

机构地区：[1]西南科技大学核废物与环境安全国防重点学科实验室,绵阳621010 [2]中国工程物理研究院流体物理研究所,绵阳621900

出　　处：《现代应用物理》2017年第1期14-17,共4页Modern Applied Physics

基　　金：中国博士后科学基金资助项目(2016M600750)

摘　　要：结合脉冲中子管的结构特征,建立了一套基于Al_2O_3单晶闪烁屏和CCD相机的中子管氘离子束束流截面测量系统。闪烁屏直径为15mm,厚度为0.5mm。为了降低测量本底,CCD相机工作在触发模式。利用有限元分析软件,模拟计算了典型中子管束流参数下的闪烁屏温度,并利用该测量系统获得了中子管氘离子束在靶面处的典型强度分布。结果表明,该测量系统可以准确地反映脉冲离子束束流的横向强度分布特征。A beam profiling system based on Al2O3 crystal scintillator and CCD camera was established for the measurement of transverse beam profile of pulsed ion beams. The diame-ter of the scintillation film is 15 mm, and its thickness is 0. 5 mm. In order to reduce the background, the CCD camera worked in trigger mode. The temperature of the scintillation screen caused by the ion beam heating was calculated by the ANSYS program. Using this beam profiling system, the typical transverse beam profile of the D in a neutron tube was obtained.

关 键 词：脉冲离子束 闪烁屏 束流截面 

分 类 号：TL81[核科学技术—核技术及应用]