ICT中加速器射线脉冲的同步控制  

Sync control of X-ray pulse in ICT driven by linear accelerator

作　　者：李炬[1] 孙灵霞[1] 武胜[1] 魏肯堂[1] 叶云长[1] 

机构地区：[1]中国工程物理研究院

出　　处：《核电子学与探测技术》2003年第5期401-403,共3页Nuclear Electronics & Detection Technology

基　　金：中国工程物理研究院重点基金资助项目(2000Z0302)

摘　　要：用加速器作为ICT系统的射线源,必须保证加速器射线脉冲频率与CT数据采集周期同步。通过分析CT的原始信号源,设计了同步控制电路,实现了在CT的1个数据采集周期能够完整匹配2～4个加速器射线脉冲。系统射线强度的最低平均计数能够满足高密度材料图像重建的要求。It is very important to synchronize the ray pulse frequency of accelerator with data acquisition cycle of Industrial Computed Tomography (ICT) when using accelerator as ray source. This paper analyzes the original signal of CT and designs a sync control circuit which can make the accelerator produce respectively 2, 3 or 4 Xray pulses in one data acquisition cycle . The minimum average rate of Xray intensity can meet the requirement of image reconstruction for high density material.

关 键 词：ICT 加速器 射线脉冲 同步控制 CT数据采集 射线源 

分 类 号：TL503.3[核科学技术—核技术及应用]