强激光与粒子束2012，Vol.24Issue(10)：2511-2515,5.DOI:10.3788/HPLPB20122410.2511
磁绝缘传输线电流测量差模式B-dot探头
Differential B-dot monitor used for current measure of magnetically insulated transmission lines
摘要
Abstract
A differential B-dot used for current measure of the magnetically insulated transmission lines (MITL) has been developed. By using the commercial PSpice software, the equivalent circuit model of the B-dot monitor, the transfer-equations and the frequency responses of the B-dot were obtained. Calculation results show that signals with frequency more than 2. 5 MHz can be perfectly measured by the B-dot. This B-dot monitor has been used for the 1. 0 m long, 2 cm AK gap coaxial-MITL experiments on "QiangGuang- I " accelerator. Experimental results show that with the shorted load, the current waveforms measured by the B-dots along the MITL are almost the same (the peak current is 1. 0 MA, and the risetime is 125 ns), namely, the current loss along the line is negligible. This results perfectly accord with the theoretical transfer characteristics of the MITL with shorted load.关键词
差模式B-dot/电流测量/磁绝缘传输线/空间电子Key words
differential B-dot/ current measurement/ magnetically insulated transmission line/ space electron分类
信息技术与安全科学引用本文复制引用
呼义翔,韩娟娟,郭宁,王亮平,黄涛,张信军,雷天时..磁绝缘传输线电流测量差模式B-dot探头[J].强激光与粒子束,2012,24(10):2511-2515,5.基金项目
国家自然科学基金项目(50637010,51077111) （50637010,51077111）
