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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 kg-scale bars of dimensions 5.5 cm × 5.5 cm × 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.
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C. Roca (2024) studied this question.
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