强激光与粒子束2012，Vol.24Issue(2)：501-504,4.DOI:10.3788/HPLPB20122402.0501
用于诊断纳秒脉冲电流的微分环现场标定技术
Field calibration method for nanosecond pulse differential ring
姚伟博 1张永民 1来定国 1程亮 1任书庆 1张玉英 1谢霖燊 1黄建军 1杨莉1
作者信息
摘要
Abstract
This paper puts forward a field calibration method of differential ring for nanosecond pulse current measurement after analyzing the problems in calibration. To resolve the low signal-to-noise ratio and low reliability issues, the pulse charging principle of pulse forming line is analyzed. The relation between calibration result and charging capacitance, charging inductance, pulse forming line voltage and pulse forming switch breakdown voltage is also analyzed. Field calibration of the differential ring for pulsed electron beam current measurement is conducted on the Flash Ⅱ accelerator. When the average breakdown voltage of the front gap switch is 25 kV, the calibration current is 1. 3 kA, the average sensitivity of the differential ring is 9.31×1010 with a de-viation of 0. 15×1010.关键词
微分环/分布参数/现场标定/信噪比/脉冲形成线Key words
differential ring/distributed parameter/field calibration/signal-to-noise ratio/pulse forming line分类
信息技术与安全科学引用本文复制引用
姚伟博,张永民,来定国,程亮,任书庆,张玉英,谢霖燊,黄建军,杨莉..用于诊断纳秒脉冲电流的微分环现场标定技术[J].强激光与粒子束,2012,24(2):501-504,4.
