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The Gadolinium Aluminum Gallium Garnet (Ce:GAGG) is a flavescent crystal with high light output of 50000 ph/MeV, short decay time of ∼50 ns and high density of 6.63 g/cm³ . The Ce:GAGG crystals appeared to be the most attractive material for its light output, decay time, energy resolution, density and absence of intrinsic radioactivity, which is promising for applying in the field of scanning electron microscopy (SEM), X-ray and γ-ray detection, medical imaging techniques, nuclear and high energy physics. Ce:GAGG Scintillator  Crystal —  A scintillation crystals uesd for high-precision detection The cerium doped multicomponent Gadolinium Aluminum Gallium Garnet crystals, referred as Ce:GAGG with the chemical formula of Ce:Gd 3 Al 2 Ga 3 O 12 , belong to the most important discoveries that offer excellent scintillation properties as well as having entered the scintillator market in the current decade. The effective atomic number is 54.4, and the emission spectrum peak wavelength is 520

The Gadolinium Aluminum Gallium Garnet (Ce:GAGG) is a flavescent crystal with high light output of 50000 ph/MeV, short decay time of ∼50 ns and high density of 6.63 g/cm³ . The Ce:GAGG crystals appeared to be the most attractive material for its light output, decay time, energy resolution, density and absence of intrinsic radioactivity, which is promising for applying in the field of scanning electron microscopy (SEM), X-ray and γ-ray detection, medical imaging techniques, nuclear and high energy physics. Ce:GAGG Scintillator  Crystal—  A scintillation crystals uesd for high-precision detection The cerium doped multicomponent Gadolinium Aluminum Gallium Garnet crystals, referred as Ce:GAGG with the chemical formula of Ce:Gd 3 Al 2 Ga 3 O 12 , belong to the most important discoveries that offer excellent scintillation properties as well as having entered the scintillator market in the current decade. The effective atomic number is 54.4, and the emission spectrum peak wavelength is 52

Ceramic scintillators based on the composition Gd 2 O 2 S: Pr: Ce have high efficiency in converting X- rays into light rays,  a decay time (t 1/10  = 5.5 us) short enough to permit repeated imaging with an interval of 1 ms, low phosphorescence, and high radiation stability. Because of the combination of these properties, they have become widely used in medical computerized tomography. Gadolinium oxysulfide (Gd 2 O 2 S) i s also to produce phosphors and scintillation ceramics for color television picture tubes, medical imaging equipment, and up conversion luminescence, due to its wide-gap (4.6– 4.8eV), high chemical stability and high density. The present GOS scintillation ceramics are very promising as scintillator materials for X-ray CT detector applications.

Ce: YAP is a high temperature scintillating crystal with excellent properties. It has attracted more abroad because of its high light yield, fast decay time (about 27 ns) and neutron sensitivity. The emission wavelength of Ce:YAP is 350-390 nm, which matches the receiving range of photo multiplier tube and has high intrinsic energy resolution (1.3-3.4%). It has strong ability to stop charged particles and high detection efficiency for γ rays, but is relatively insensitive to neutrons, so it can be applied to the discrimination and measurement of γ rays in neutron-γ mixed radiation field. At the same time, Ce:YAP crystal has very good performance. Thermodynamic and chemical properties, non-deliquescence, easy processing, high temperature resistance, radiation resistance and other characteristics, so it has broad application prospects in high-energy ray detection, nuclear medicine and so on. Ce:YAP – A scintillating crystal with high light yield, fast decay and emission wavelength of

Ceramic scintillators based on the composition Gd 2 O 2 S: Pr: Ce have high efficiency in converting X- rays into light rays,  a decay time (t 1/10  = 5.5 us) short enough to permit repeated imaging with an interval of 1 ms, low phosphorescence, and high radiation stability. Because of the combination of these properties, they have become widely used in medical computerized tomography. Gadolinium oxysulfide (Gd 2 O 2 S) is also to produce phosphors and scintillation ceramics for color television picture tubes, medical imaging equipment, and up conversion luminescence, due to its wide-gap (4.6– 4.8eV), high chemical stability and high density. The present GOS scintillation ceramics are very promising as scintillator materials for X-ray CT detector applications.

TI:CsI, Na:CsI,CsI Scintillator Crystals TI:CsI is one of the brightest scintillators. It has most of its emission in the long wavelength part of the spectrum (>500nm), it is well-suited for photodiode readout. TI:CsI crystal has high light yield, no cleavage surface, low melting point and easy growth. It has good optical properties, mechanical properties, physical and chemical stability and high photoelectric conversion efficiency. It is a scintillator with excellent comprehensive performance. It has been widely used in many fields, such as Security check, Detection of neutrinos, Detection of neutrinos andγ-ray, XCT. Pure CsI is also known as a scintillator but exhibits rather different properties. It exhibits fast (~10 ns) emission, peaking at 310 nm, but its scintillation yield at room temperature is very low. But its light yield at 77 K reaches an impressive 100,000 ph/MeV, that makes pure CsI a very attractive scintillator for detector applications at low temperatures. Na-dope

Ce:YAG single crystal is a fast decay scintillation material with excellent comprehensive performance, with high light output (20000 photons MeV), fast luminescent decay (~ 70ns), excellent thermal mechanical properties, The peak wavelength of luminescence (540 nm) matches well with the receiving sensitive wavelength of common photomultiplier tube (PMT) and silicon photodiode (PD), good light pulses distinguish between γ rays and α particles, Ce:YAG is suitable for detecting light charged particles such as α particles, electrons and βrays, Especially, the good mechanical properties of Ce:YAG single crystal make it possible to fabricate thin screen with thickness less than 30 um.. Ce:YAG scintillation detectors are widely used in electron microscopy, β and X-ray counting, electronic and X-ray imaging screens and other fields. Ce:YAG Scintillator Crystal—A fast decay scintillation material used in white LED Ce:YAG single crystal has obvious absorption peak at 340nm and 460nm, which i