Transient current pulses in gamma-irradiated polyethylene

Abstract

Transient pulses or spikes of current under direct applied fields were observed in LDPE (low-density polyethylene) following gamma irradiation in ambient air to doses between 10/sup 4/ and 10/sup 6/ Gy. This pulse activity is a function of field strength, dose, and temperature. It is concluded that the origins of the pulses are probably either gas production or charge generation.<>