TY - JOUR
T1 - Effects of neutron radiation on the optical and structural properties of blue and green emitting plastic scintillators
AU - Baranov, V.
AU - Davydov, Yu I.
AU - Erasmus, R.
AU - Kureba, C. O.
AU - Lekalakala, N.
AU - Masuku, T.
AU - Mdhluli, J. E.
AU - Mellado, B.
AU - Mokgatitswane, G.
AU - Sideras-Haddad, E.
AU - Vasilyev, I.
AU - Zhmurin, P. N.
PY - 2018/12/1
Y1 - 2018/12/1
N2 - We report on the optical and structural properties of plastic scintillators irradiated with neutron beams produced by the IBR-2 reactor of the Frank Laboratory of Neutron Physics in JINR, Dubna. Blue UPS-923A and green plastic scintillators were irradiated with neutron fluence ranging from 1013 to 1017 n/cm2. Discolouring in the plastic scintillators was observed after irradiation. The effects of radiation damage on the optical and structural properties of the samples were characterized by conducting light yield, light transmission, light fluorescence and Raman spectroscopy studies. The results showed that neutron radiation induced damage in the material. The disappearance of the Raman peak features in green scintillators at frequencies of 1165.8, 1574.7 and 1651.2 cm−1 revealed significant structural alterations due to neutron bombardment. Losses in fluorescence intensity, light yield and light transmission in the plastic scintillators were observed.
AB - We report on the optical and structural properties of plastic scintillators irradiated with neutron beams produced by the IBR-2 reactor of the Frank Laboratory of Neutron Physics in JINR, Dubna. Blue UPS-923A and green plastic scintillators were irradiated with neutron fluence ranging from 1013 to 1017 n/cm2. Discolouring in the plastic scintillators was observed after irradiation. The effects of radiation damage on the optical and structural properties of the samples were characterized by conducting light yield, light transmission, light fluorescence and Raman spectroscopy studies. The results showed that neutron radiation induced damage in the material. The disappearance of the Raman peak features in green scintillators at frequencies of 1165.8, 1574.7 and 1651.2 cm−1 revealed significant structural alterations due to neutron bombardment. Losses in fluorescence intensity, light yield and light transmission in the plastic scintillators were observed.
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U2 - 10.1016/j.nimb.2018.10.002
DO - 10.1016/j.nimb.2018.10.002
M3 - Article
AN - SCOPUS:85054448802
SN - 0168-583X
VL - 436
SP - 236
EP - 243
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
ER -