Scintillation properties of Gd3(Al5-xGax)O12:Ce (x = 2.3, 2.6, 3.0) single crystals
Source abstract
Abstract
Abstract Scintillation properties of Czochralski-grown Gd3(Al5-xGax)O12:Ce (x = 2.3, 2.6, 3.0) single crystals were investigated. With increasing Ga content in garnet host, the radioluminescence band due to 5d1 → 4f emission transition was blue-shifted due to a decrease in the crystal field splitting of the 5 d levels. At 662 keV γ rays, the LY value of 47,000, 55,100 and 51,900 ph/MeV was obtained for Gd3Al2.7Ga2.3O12:Ce, Gd3Al2.4Ga2.6O12:Ce and Gd3Al2Ga3O12:Ce, respectively. In spite of a lower LY value, Gd3Al2.7Ga2.3O12:Ce shows good energy resolution of 4.1% due to its proportionality of LY. The ratio of LY values under excitation with α- and γ-rays (α/γ ratio) was also determined. The fast component decay time with relative intensity of 146 ns (66%), 142 ns (76%) and 112 ns (76%) was measured in the scintillation decay of Gd3Al2.7Ga2.3O12:Ce, Gd3Al2.4Ga2.6O12:Ce and Gd3Al2Ga3O12:Ce, respectively. Good coincidence time resolution of Gd3Al2Ga3O12:Ce is due to a high initial photon emission rate.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Radiation Detection and Scintillator Technologies · Nuclear materials and radiation effects · Luminescence Properties of Advanced Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
Show source-provided references
1. Traps and timing characteristics of LuAG: Ce3+ scintillator10.1002/1521-396X(200009)181:1<R10::AID-PSSA999910>3.0.CO;2-9 ↗
2. Fundamental limitations in the performance of Ce3+, Pr3+, and Eu2+ activated scintillators10.1109/TNS.2009.2031140 ↗
3. LuAG: Ce fibers for high energy calorimetry10.1063/1.3452358 ↗
4. The antisite LuAl defect-related trap in Lu3Al5O12:Ce single crystal, Phys10.1002/pssb.200541225 ↗
5. Shallow traps and radiative recombination processes in Lu3Al5O12:Ce single crystal scintillator10.1103/PhysRevB.76.195121 ↗
6. Scintillation properties of LuAG: Ce, YAG: Ce and LYSO: Ce crystals for gamma-ray detection10.1109/TNS.2009.2033994 ↗
7. Antisite defect-free Lu3(GaxAl1−x)5O12:Pr scintillator10.1063/1.2191741 ↗
8. Band-gap engineering for removing shallow traps in rare-earth Lu3Al5O12 garnet scintillators using Ga3+ doping10.1103/PhysRevB.84.081102 ↗
9. Growth and optical properties of Lu3(Ga,Al)5O12 single crystals for scintillator application10.1016/j.jcrysgro.2008.09.146 ↗
10. Composition engineering in cerium-doped (Lu,Gd)3(Ga,Al)5O12 single-crystal scintillators10.1021/cg200694a ↗
11. Scintillator-oriented combinatorial search in (Y,Gd)3(Ga,Al)5O12 multi-component garnet compounds10.1088/0022-3727/44/50/505104 ↗
12. Transparent ceramic scintillators for gamma spectroscopy and radiography10.1117/12.862503 ↗
13. 2 inch diameter single crystal growth and scintillation properties of Ce:Gd3Al2Ga3O1210.1016/j.jcrysgro.2011.11.085 ↗
14. Electronic structure and optical properties of the lanthanide activated RE3(Al1-xGax)5O12 (RE=Gd, Y, Lu) garnet compounds10.1016/j.jlumin.2012.08.028 ↗
15. Luminescence and luminescence quenching in Gd3(Ga,Al)5O12 scintillators doped with Ce3+10.1021/jp309572p ↗
16. Single crystal and optical ceramic multicomponent garnet scintillators: a comparative study10.1016/j.nima.2015.01.057 ↗
17. Development of LuAG-based scintillator crystals – a review10.1016/j.pcrysgrow.2013.02.001 ↗
18. Ce3+-Doped garnet phosphors: composition modification, luminescence properties and applications10.1039/C6CS00551A ↗
19. Cz grown 2-in. size Ce:Gd3(Al,Ga)5O12 single crystal; relationship between Al, Ga site occupancy and scintillation properties10.1016/j.optmat.2014.04.001 ↗
20. Characterization of GAGG: Ce scintillators with various Al-to-Ga ratio10.1016/j.nima.2014.10.041 ↗
21. Growth and characterization of Ce:Gd3(Al,Ga)5O12 single crystals with various ratio of Ga to Al10.1016/j.jcrysgro.2016.09.081 ↗
22. Structure and scintillation yield of Ce-doped Al–Ga substituted yttrium garnet10.1016/j.materresbull.2012.08.004 ↗
23. S., Temperature and compositional dependence of optical and optoelectronic properties in Ce3+-doped Y3Sc2Al3-xGaxO12 (x = 0, 1, 2, 3)10.1016/j.optmat.2012.11.016 ↗
24. G, Energy transfer and radiative recombination processes in (Gd,Lu)3Ga3Al2O12:Pr3+ scintillators10.1016/j.optmat.2013.05.039 ↗
25. Luminescence and scintillation characteristics of (GdxY3-x)Al2Ga3O12:Ce (x =1,2,3) single crystals10.1016/j.optmat.2017.12.025 ↗
26. Intrinsic energy resolution of NaI(Tl)10.1016/S0168-9002(01)01964-7 ↗
27. Non-proportionality in the scintillation response and the energy resolution obtainable with scintillation crystals10.1109/23.489415 ↗
28. An analytical model of nonproportional scintillator light yield in terms of recombination rates10.1063/1.3081651 ↗
29. New fast photomultipliers with a screening grid at the anode10.1109/TNS.2004.832322 ↗
30. State of the art timing in TOF-PET detectors with LuAG, GAGG and L(Y)SO scintillators of various sizes coupled to FBK-SiPMs
31. Effect of Mg2+ ions co-doping on timing performance and radiation tolerance of cerium doped Gd3Al2Ga3O12 crystals10.1016/j.nima.2016.02.004 ↗