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Optical and Scintillation Properties of the Thermal Neutron Scintillator Li _{3} YCl _{6} :Ce

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4 Author(s)
Putaj, P. ; Delft Univ. of Technol., Delft, Netherlands ; de Haas, J.T.M. ; Kramer, K.W. ; Dorenbos, P.

The thermal neutron detection, X-ray detection, gamma detection and the optical properties of the chloride scintillator Li3YCl6:Ce are reported. Photo-luminescence (PL) and luminescence excitation spectra together with X-ray excited emission studies provide information on the scintillation and luminescence mechanism. Thermal neutron scintillation performance was investigated and compared with the performance of scintillators like Rb2LiYBr6:Ce and Cs2LiYCl6:Ce from the elpasolite family. The estimated absorption length for thermal neutrons (1.8 Å wavelength or 25 meV energy) is 0.8 mm in 95 % 6Li-enriched Li3YCl6:Ce.

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Nuclear Science, IEEE Transactions on  (Volume:57 ,  Issue: 3 )