Abstract:The lifetimes of two excited states of iodine centers in KC1 single crystals were measured between 15 and 300°K, following flash excitation. Previous and new results of the fluorescent yield of these same emission processes are presented for comparison. At low temperatures the radiative lifetime is 1.7X10 -4 sec and the yield 100%±50% for the blue-green emission process; for the ultraviolet emission the lifetime is 1.3X10 -7 sec and the maximum yield 70%±35%. In an intermediate temperature range, the radiative… Show more
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