Penetration of the nuclear electromagnetic pulse (EMP) in lossy dielectric media

The nuclear electromagnetic pulse (EMP) presents a dangerous threat to electronic systems. We investigate the penetration capabilities of the EMP through a lossy dielectric. A transient solution is presented that takes into consideration the special time function of EMP pulses and the dispersion of the medium. The spectrum and time domain responses of the induced pulses at different depths are computed for different degrees of medium conductivity. The results are of importance in determining the EMP shielding capabilities of different media and to get a measure of the EMP leakage through buildings, antenna radomes and shelters.