Towards effective indirect radioisotope energy converters with bright and radiation hard scintillators of (Gd,Y)3Al2Ga3O12 family

Lanthanoid-doped quaternary garnets as phosphors for high brightness cathodoluminescence-based light sources

“…The studied phosphors exhibited a high cathodoluminescence light yield (LY) under high-intensity electron beam excitation, in spite of possible light yield saturation [ 23 ], which is typical of phosphors with slow luminescence decay [ 24 , 25 ]. The relative LY of these samples was ​measured as the ratio of the spectrally-integrated CL normalized to the intensity of the electron beam.…”

Development and prospects of garnet ceramic scintillators: A review

“…The LY under γ-and α-excitation of GYGAG:Tb/ Ce were tested, and the highest LY of Tb 3+ -doped samples was four times that of Ce 3+ -doped samples when x = 1-1.2. The good irradiation tolerance and temperature stability of the GYGAG:Tb/Ce ceramics were also subsequently confirmed, which was strong evidence of their great potential for nuclear batteries [240].…”

First Observation of the Scintillation Cascade in Tb3+‐Doped Quaternary Garnet Ceramics

“…[18][19][20][21][22][23] Recently, the authors of another study [24] estimated the scintillation yield in GYAGG:Tb ceramics for γ-quanta as 200 000 ph MeV À1 at α/γ ¼ 2.8. Later, [25] after direct measurement of α/γ ¼ 2.2 for heavily doped ceramics, the scintillation yield was determined to be %150 000 ph MeV À1 . For Ce-activated ceramics of a similar composition, the scintillation yield upon excitation by gamma radiation is evaluated to be not more than 73 500 ph MeV À1 .…”