Experimental results are given for the temperature dependence of the d
ecay time of the emission at 430 nm from PbWO4 crystal under vacuum-ul
traviolet (82 nm) photon excitation in the temperature range of 80-300
K. The structures in the curve are interpreted for the first time by
studying the thermoluminescence of PbWO4, which originates from the tr
aps in the crystal.