Study of polysterene based scintillator ageing in the DANSS experiment
Abstract DANSS is a spectrometer for reactor antineutrinos based on plastic scintillator. The sensitive volume of the detector is made of 2500 polystyrene based scintillator plates with wavelength shifting (WLS) fiber readout (strips). We present a study of the light yield of strips during 6.5 years...
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Published in | Journal of instrumentation Vol. 19; no. 4; p. P04031 |
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Main Authors | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Bristol
IOP Publishing
01.04.2024
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Subjects | |
Online Access | Get full text |
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Summary: | Abstract
DANSS is a spectrometer for reactor antineutrinos based on
plastic scintillator. The sensitive volume of the detector is made
of 2500 polystyrene based scintillator plates with wavelength
shifting (WLS) fiber readout (strips). We present a study of the
light yield of strips during 6.5 years of DANSS continuous
running. Overall ageing at the rate
0.55 ± 0.05 (syst.) % per year is observed that is
considerably smaller than in other similar experiments. We also
observe the WLS fiber attenuation length shortening at the rate
0.26 ± 0.04(stat.) % per year. |
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ISSN: | 1748-0221 1748-0221 |
DOI: | 10.1088/1748-0221/19/04/P04031 |