杆箍缩二极管X射线源焦斑的刀口法测量  

X-ray Spot Measurement for Rod-pinch Diode Radiographic Source by Rolled-edge

作　　者：宋顾周[1] 马继明[1] 韩长材[1] 朱宏权[1] 王奎禄[1] 张占宏[1] 黑东炜[1] 

机构地区：[1]西北核技术研究所,西安69信箱9分箱710024

出　　处：《核电子学与探测技术》2010年第6期763-767,共5页Nuclear Electronics & Detection Technology

摘　　要：辐射成像中,射线源尺寸与形状是影响图像分辨率的主要因素之一。柱面刀口法是焦斑尺寸测量最常用的方法之一。对刀口法空间分辨与视场进行了分析。实验测量了杆箍缩二极管X射线源焦斑尺寸,给出了初步结果。The rod-pinch diode （RPD） is a cylindrical pinched-beam diode that provides an intense pulsed small-diameter X-ray source. The X-ray spot size of RPD is a critical parameter to evaluate the spatial resolution performance for radiography. A measurement system using the rolled-edge imaging technique is established to measure the X-ray spots. The spatial resolution and field of view of the rolled-edge is analysised. The spot size of RPD with 1.2- turn-diameter rod was determined as 0. 91 mm.

关 键 词：辐射成像 焦斑 柱面刀口 

分 类 号：O411.3[理学—理论物理]