Fluorescence and absorption of a polystyrene-based scintillator exposed to UV laser radiation |
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| Authors: | R N Nurmukhametov L V Volkova V G Klimenko S P Kabanov R V Salov |
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| Institution: | (1) L. Ya. Karpov Scientific Research Institute of Physical Chemistry (Federal State Unitary Enterprise), 10 Vorontsovo pole, Moscow, 103064, Russia;(2) Moscow State Technical University — MAMI, Russia |
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| Abstract: | We have established that exposure of polystyrene-based scintillator samples to UV laser radiation (248 nm) leads to a significant
decrease in the fluorescence intensity. We have carried out a spectral analysis of the luminescent and absorption properties
of the scintillator, which allowed us to determine the major factor in the decrease in luminescence intensity of the samples
exposed to UV radiation. We propose a new hypothesis for the mechanism of the processes leading to the decrease in light output
of the scintillator during operation.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 74, No. 6, pp. 744–749, November–December, 2007. |
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| Keywords: | plastic scintillator polystyrene UV laser fluorescence |
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