Neutron detection by Gd-loaded garnet ceramic scintillators
2019
Abstract Ceramic samples of (Gd,Y) 3 (Ga,Al) 5 O 12 :Ce compounds were obtained by air sintering of uniaxially pressed powders, synthesized using a coprecipitation approach. The resulting material contained several percent of pores and was light scattering but translucent, with estimated light yield of 4.5 ph/keV under γ-ray excitation. The ceramic samples demonstrated the ability to detect neutrons from an Am–Be source – more than 70% of the signal was estimated to be caused by neutrons of energies exceeding 1 eV.
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