THERMOLUMINESCENCE EMISSION CHARACTERISTICS OF LIF(MG,CU,P) WITH DIFFERENT DOPANT CONCENTRATIONS

The spectrum of the light emitted during thermoluminescence from irrad iated LiF(Mg,Cu,P) has been measured for samples with different Cu and P contents. The results show no essential differences in glow curve s tructure and emission spectrum for MCP materials with different dopant contents and produced with different production techniques, except fo r samples with a low phosphorus concentration. The emission spectrum c onsists of two bands with maxima at 350 and 384 nm; the latter is domi nant in the main glow peak and the former becomes more important at hi gher temperatures. Both bands are correlated with phosphorus, which ap pears to play a vital role in the overall sensitivity.