Calculation of wires responses caused by SGEMP comprehensive environment

The responses of wires in a cylinder cavity caused by system generated electromagnetic pulse (SGEMP) comprehensive environment were simulated with FDTD, PIC methods and Holland thin line algorithm. The comprehensive environment includes transmitted X-ray, forward electrons and SGEMP field. The numerical results indicate that the biggest responses are caused by transmitted X-ray, and the smallest responses are caused by forward electrons. The response polarities of transmitted X-ray and forward electrons are opposite, and the response polarity of SGEMP field is related with the distribution of the field. Thus the transmitted X-ray would be the first concern in wires protection in the comprehensive environment.