Performances of Crystal Scintillators in a Severe Radiation Environment Caused by Gamma Rays

Yang, F.; Zhang, L. Y.; Zhu, R. Y.

doi:10.1088/1742-6596/928/1/012032

Cited by 2 publications

(4 citation statements)

References 9 publications

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“…3D printing of scintillator materials, both organic and inorganic, with spatial details on the order of hundred microns, was demonstrated (Figure E), which is much larger than needed for photonic enhancement but may be enough for some types of metamaterials with energy sharing. ,, 2-photon stereolithography is a commercially available technique, which allows high-resolution 3D-printing. It was used to fabricate objects from YAG, a popular scintillator host (Figure F), and photonic structures with submicrometer resolution. However, this method is still relatively expensive and slow.…”

Section: Discussionmentioning

confidence: 99%

“… 183 , 186 , 187 2-photon stereolithography is a commercially available technique, which allows high-resolution 3D-printing. It was used to fabricate objects from YAG, a popular scintillator host 116 ( Figure 4 F), and photonic structures 140 with submicrometer resolution. However, this method is still relatively expensive and slow.…”

Section: Discussionmentioning

confidence: 99%

“…oxide crystals are less prone to radiation damage than halides: LYSO maintains 60% of its light output after 340 Mrad irradiation, BGO showed 35% after 200 Mrad, and CsI – 30% after only 1 Mrad. 140 However, lead halide perovskites—promising components of nanophotonic scintillators—show surprisingly high radiation hardness; thin film of Cs 0.05 FA 0.81 MA 0.14 PbI 2.55 Br 0.45 barely showed any drop-in power conversion efficiency after a 2.3 Mrad dose, 141 and F passivated CsPbBr 3 NCs of showed >70% PL quantum yield after 100 Mrad irradiation. 107 One of the possible reasons is that radiation-induced defects do not have spectral overlap with the emitted light, as it happens in garnets, or self-healing, as seen in case of lead/lead-free halide perovskite.…”

Section: Enhancement Of Time Resolution By a Meta-scintillation Approachmentioning

confidence: 99%

“…Usually, crystals with a rigid lattice are considered more radiation hard than compounds with a softer lattice; e.g . oxide crystals are less prone to radiation damage than halides: LYSO maintains 60% of its light output after 340 Mrad irradiation, BGO showed 35% after 200 Mrad, and CsI – 30% after only 1 Mrad . However, lead halide perovskitespromising components of nanophotonic scintillatorsshow surprisingly high radiation hardness; thin film of Cs 0.05 FA 0.81 MA 0.14 PbI 2.55 Br 0.45 barely showed any drop-in power conversion efficiency after a 2.3 Mrad dose, and F passivated CsPbBr 3 NCs of showed >70% PL quantum yield after 100 Mrad irradiation .…”

Section: Enhancement Of Time Resolution By a Meta-scintillation Approachmentioning

confidence: 99%

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Bright Innovations: Review of Next-Generation Advances in Scintillator Engineering

Singh,

Dosovitskiy,

Bekenstein

2024

ACS Nano

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This review focuses on modern scintillators, the heart of ionizing radiation detection with applications in medical diagnostics, homeland security, research, and other areas. The conventional method to improve their characteristics, such as light output and timing properties, consists of improving in material composition and doping, etc., which are intrinsic to the material. On the contrary, we review recent advancements in cutting-edge approaches to shape scintillator characteristics via photonic and metamaterial engineering, which are extrinsic and introduce controlled inhomogeneity in the scintillator’s surface or volume. The methods to be discussed include improved light out-coupling using photonic crystal (PhC) coating, dielectric architecture modification producing the Purcell effect, and meta-materials engineering based on energy sharing. These approaches help to break traditional bulk scintillators’ limitations, e.g., to deal with poor light extraction efficiency from the material due to a typically large refractive index mismatch or improve timing performance compared to bulk materials. In the Outlook section, modern physical phenomena are discussed and suggested as the basis for the next generations of scintillation-based detectors and technology, followed by a brief discussion on cost-effective fabrication techniques that could be scalable.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Enhancement Of Time Resolution By a Meta-scintillation Approachmentioning

confidence: 99%

Section: Enhancement Of Time Resolution By a Meta-scintillation Approachmentioning

confidence: 99%

See 2 more Smart Citations

Bright Innovations: Review of Next-Generation Advances in Scintillator Engineering

Singh,

Dosovitskiy,

Bekenstein

2024

ACS Nano

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show abstract

Extreme γ-ray radiation hardness and high scintillation yield in perovskite nanocrystals

et al. 2022

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Performances of Crystal Scintillators in a Severe Radiation Environment Caused by Gamma Rays

Cited by 2 publications

References 9 publications

Bright Innovations: Review of Next-Generation Advances in Scintillator Engineering

Bright Innovations: Review of Next-Generation Advances in Scintillator Engineering

Extreme γ-ray radiation hardness and high scintillation yield in perovskite nanocrystals

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