Abstract
The temporal behavior of light collection in the 1.5-m3-volume mirror-reflecting counter filled with a highly transmitting liquid scintillator has been investigated. Using the Monte Carlo method and assuming that the luminescence decay time of the liquid scintillator is zero (τLS = 0), it has been ascertained that, in the case of a short flash in a counter, the exponential phase of light collection is characterized by time τcol = 15.0 ± 1.7 ns, which is does not depend on scattering of light in the medium. The measured exponent index τact = 37 ± 3 ns of an actual pulse due to a muon is determined both by light collection time τcol ≈ 15 ns and luminescence decay time τLS ≈ 20 ns of the scintillator in the large-volume counter.
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Original Russian Text © N.Yu. Agafonova, V.V. Boyarkin, A.S. Mal’gin, 2010, published in Pribory i Tekhnika Eksperimenta, 2010, No. 6, pp. 29–33.
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Agafonova, N.Y., Boyarkin, V.V. & Mal’gin, A.S. Temporal characteristics of light collection in the liquid scintillation counter with a volume of 1.5 m3 and quasi-mirror reflection. Instrum Exp Tech 53, 800–804 (2010). https://doi.org/10.1134/S0020441210060060
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DOI: https://doi.org/10.1134/S0020441210060060