Spectral radioluminescence properties of a large number of single grains we
re measured. The main emission in K-feldspar grains occurs in the infrared
range with the same dose characteristic as shown by multi-grain samples. Fo
r plagioclases, large differences in spectral radioluminescence between sin
gle-grains and multi-grain aliquots were detected. Differences in the satur
ation of the dose characteristics of the individual emissions have been obs
erved. Consequences for dating application are discussed. (C) 2000 Elsevier
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