Neutron detection by Gd-loaded garnet ceramic scintillators. (July 2019)

• Record Type: Journal Article
• Authors: Dosovitskiy, G.; Karpyuk, P.; Gordienko, E.; Kuznetsova, D.; Vashchenkova, E.; Volkov, P.; Retivov, V.; Dormenev, V.; Brinkmann, K.-T.; Zaunick, H.-G.; Mechinsky, V.; Fedorov, A.; Slusar, I.; Dosovitskiy, A.; Korzhik, M.
• Is Part Of: Radiation measurements. Volume 126(2019:Jul.)
• Publication Date: 2019-07
• Subjects: Scintillator -- Neutron detection -- Ceramics -- Garnet -- Fast neutrons; Nuclear emulsions -- Periodicals; Particle tracks (Nuclear physics) -- Periodicals; Thermoluminescence -- Periodicals; Cosmic rays -- Periodicals; Radiation -- Measurement -- Periodicals; Radiometry -- Periodicals; Radiation Monitoring -- Periodicals; Émulsions nucléaires -- Périodiques; Particules (Physique nucléaire) -- Traces -- Périodiques; Thermoluminescence -- Périodiques; Rayonnement cosmique -- Périodiques; Radiométrie -- Périodiques; 539.77
• DOI: 10.1016/j.radmeas.2019.106133
• Languages: English
• ISSNs: 1350-4487

Abstract

Abstract: Ceramic samples of (Gd, Y)3 (Ga, Al)5 O12 :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. Highlights: Translucent Gd-loaded garnet ceramic samples were obtained by air sintering. Estimated light yield was 4.5 ph/keV under γ-ray excitation. Neutron signal from an Am–Be source was detected. More than 70% of the signal was assigned to neutrons with energies exceeding 1 eV.