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The Unusual Temperature Dependence of the Eu2+ Fluorescence Lifetime in CaF2 Crystals.

✍ Scribed by C. K. Duan; A. Meijerink; R. J. Reeves; M. F. Reid

Publisher
John Wiley and Sons
Year
2006
Weight
16 KB
Volume
37
Category
Article
ISSN
0931-7597

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Positron lifetime measurements, performed in the temperature range 80-300 K, are reported for polyethylene (PE) and polytetrafluoroethylene (PTFE). The lifetime spectra have been analyzed using the data processing routines LIFSPECFIT and MELT. Two long-lived components appear, which are attributed t