本文报道神光装置放电回路的理论模型；根据理论模型得到的电位计算结果；一种特殊的电位测量电路。电位的计算结果和测量结果十分一致。电路模型和特别的测量电路是改进神光装置放电电路结构和分析并消除电磁干扰的主要办法.

In this peper,a circuit theory model for the discharge circuit of "ShenGuang"FaCility,the caculated results for pontentials which are obtained on the basis of the theorymodel,a special pontential measuring circuit and the measured results are reported.Thecaculated results are in good agreement with the measured ones. All reported in this paperare very important,especially,the circuit model and the special measuring circuit are theprincipal means to improve the discharge circuit structure and to analyse and resolve the electromagnetic interference in “Shen Guang” Facility.