Investigate the nonuniformity of low-energy electron beam with large cross-sections  

作　　者：REN Jie HUANG JianMing ZHANG YuTian LI DeMing ZHU NanKang 

机构地区：[1]Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China [2]Suzhou CNNC Huadong Radiation Co.,Ltd,Suzhou 215200,China

出　　处：《Science China(Technological Sciences)》2012年第4期997-1000,共4页中国科学（技术科学英文版）

摘　　要：Over the past decades, low-energy electron accelerators have been used worldwide for surface curing and sterilization. The beam nonuniformity is an important parameter of the low-energy electron beam with large cross-sections. A simple and accurate measurement system of nonuniformity for the low-energy electron beam with large cross-sections was developed. The main concept consists in the measurement of nonuniformity, which is realized by using a linear actuator to drive two scanning wires through the beam's cross-sections at a fixed speed. The beam distribution can be obtained by sending/collecting the current signals to/from the Data Acquisition (DAQ) software on a laptop by a USB DAQ card. This device is very convenient for the performance testing of a new accelerator at the manufacturer's site. The distribution of the homemade low voltage electron accelerator EBS-300-50 was measured and evaluated.

关 键 词：low-energy electron beam large cross-sections electron beam industry accelerator beam nonuniformity measurement 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置] TS213.23[自动化与计算机技术—控制科学与工程]