X-ray-Induced Scintillation via Energy Transfer of Gd3+ and Ce3+ in Silicate Glasses Composed of Heavy Elements

Abstract

Photoluminescence and X-ray-induced scintillation properties of xCe:20BaO-15Gd 2 O 3-65SiO 2 (x = 0, 0.01, 0.05, 0.1, 0.5) glasses were investigated. The glass samples emitted light via energy transfer from Gd 3+ in the host to Ce 3+. The 6 P 7/2-8 S 7/2 relaxation of Gd 3+ was confirmed notably in the undoped glass sample, but the emission due to Gd 3+ disappeared upon the addition of Ce. Furthermore, the decay time constant of Gd 3+ decreased with increasing Ce concentration.

X-ray-induced Luminescence Properties of Nd-doped GdVO4

“…However, there are no perfect materials satisfying all these requirements. Thus, suitable scintillators are selected according to their purpose, and many scintillator materials have been developed with different chemical compositions such as crystals, (6,7) ceramics, (8) glasses, (9,10) plastics, (11,12) and organic-inorganic compounds. (13) Because scintillators are usually used in combination with photomultiplier tubes (PMTs), which have sensitivity in the UV-visible range, scintillators emitting UV-visible light have been developed.…”

Optical and Scintillation Properties of Nd-doped Strontium Yttrate Single Crystals

“…Many inorganic materials have also been investigated as novel scintillators. (11)(12)(13)(14)(15) In recent years, with the development of near-infrared (NIR) photodetectors, NIR-emitting scintillators have been studied. (16)(17)(18)(19)(20) NIR-emitting scintillators are expected to be used in biomedical imaging (21) and dose monitoring in nuclear power plants.…”

Scintillation Properties of Dy-doped 50NaPO3–50Al(PO3)3 Glasses

“…To detect ionizing radiation efficiently, the use of bulk materials is essential since the probability of an interaction between ionizing radiation and a detector material simply depends on the volume of the material. To satisfy this requirement, bulk single crystals, (9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19) ceramics, (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31) and glasses (32)(33)(34)(35)(36)(37)(38) have been applied for scintillators and dosimeters. Among these material forms, glasses have some advantages such as high chemical durability and high light transmittance, which are preferable for scintillator and dosimeter uses.…”