Annealing Temperature Dependence of Scintillation Properties of Ga-doped ZnO Translucent Ceramics

Abstract

Ga-doped ZnO translucent ceramics were prepared by spark plasma sintering and annealed at temperatures of 600, 650, 700, 750, and 800 °C for 24 h in air. The scintillation and optical properties of the non-annealed and annealed ZnO:Ga translucent ceramics were investigated. An absorption band from 550 to 800 nm was observed in the diffuse transmittance spectra of all the ZnO:Ga samples. In the scintillation spectra, all the ZnO:Ga samples exhibited defect-related emissions peaking at 500 nm under X-ray irradiation. Among the samples, the annealed ZnO:Ga translucent ceramic sample annealed at 700 °C showed the highest light yield (12000 photons/5.5 MeV-α).

Photoluminescence and Radioluminescence Properties of Y3Al5O12 Doped with 3d-Transition Metal Ions

“…Although many scintillators have been studied in the last few decades, (4)(5)(6)(7) fundamental studies on novel scintillators still continue to achieve better performance than ever before. There have been reports on various types of scintillator, such as single crystals, (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21) nanocrystals, (22) crystalline films, (23) ceramics, (24)(25)(26)(27) glasses, (28)(29)(30)(31)(32)(33)(34)(35)(36)(37) plastics, (38) and organic-inorganic hybrid materials, (39)(40)(41)(42) even in the last few years. In terms of the luminescent center, specific dopants such as Ce, Eu, and Tl have been mainly used for commercial scintillators; however, other dopants are also of our interest.…”

Tm Concentration Dependence on Scintillation Properties of Y3Al5O12 Garnet Single Crystals

“…Therefore, the performance of scintillators strongly affects that of radiation detectors. Various scintillators, such as films, (6) ceramics, (7)(8)(9)(10)(11)(12) glasses, (13)(14)(15)(16)(17)(18)(19)(20)(21)(22) single crystals, (23)(24)(25)(26)(27)(28)(29)(30)(31)(32) and nanoparticles, (33) have been investigated to date. Single crystal materials tend to show excellent properties and are widely used as scintillators.…”

Photoluminescence and scintillation properties of Pr-doped (Lu, Y)2Si2O7 crystals

“…6) The required properties for the scintillators vary for each application; however, high emission efficiency, fast decay, and low afterglow are generally important as scintillation properties. To explore the scintillators which satisfy the above requirements, various types of scintillators such as single crystals, [7][8][9][10] ceramics, [11][12][13] glasses, [14][15][16] and liquids [17][18][19] have been researched.…”