Performance of large-scale 6Li-doped pulse-shape discriminating plastic scintillators

A 6Li-doped plastic scintillator with pulse-shape discrimination capabilities, commercially identified as ej-299-50, has been developed and produced at the kilogram-scale. A total of 44 bars of dimensions 5.5 cm x 5.5 cm x 50 cm of this material have been characterized. Optical properties like light...

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Veröffentlicht in:	Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2024-12, Vol.1069, Article 169916
Hauptverfasser:	Roca, C., Bowden, N.S., Carman, L., Dazeley, S.A., Durham, S.R., Falana, O.M., Ford, M.J., Glenn, A.M., Hurlbut, C., Li, V.A., Mendenhall, M.P., Shipp, K., Sutanto, F., Zaitseva, N.P.
Format:	Artikel
Sprache:	eng
Schlagworte:	6Li-loaded scintillator Neutron detection Plastic scintillator PSD Pulse-shape discrimination Reactor antineutrino detection
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Zusammenfassung:	A 6Li-doped plastic scintillator with pulse-shape discrimination capabilities, commercially identified as ej-299-50, has been developed and produced at the kilogram-scale. A total of 44 bars of dimensions 5.5 cm x 5.5 cm x 50 cm of this material have been characterized. Optical properties like light output and effective attenuation length have been found to be comparable to 6Li-doped liquid scintillators. The scintillator ej-299-50 shows good neutron detection capabilities with an effective efficiency for capture on 6Li of approximately 85%. Stability tests performed on two formulation variations showed no intrinsic degradation in the material or optical properties during several months of observations.
ISSN:	0168-9002
DOI:	10.1016/j.nima.2024.169916