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Littérature scientifique sur le sujet « Scintillation opaque »

Auteur : Grafiati

Publié le 11 janvier 2025

Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "Scintillation opaque"

Hua, Z. H., S. Qian, H. Cai, et al. "R&D of glass scintillator for nuclear radiation detection." Journal of Instrumentation 18, no. 12 (2023): C12003. http://dx.doi.org/10.1088/1748-0221/18/12/c12003.

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Abstract In 2021, the Institute of High Energy Physics proposed a design of glass scintillator coupled with SiPM as a new solution for the next generation calorimeter, to explore the application of glass scintillators in high energy physics and nuclear radiation detection. The Large Area Glass Scintillator Collaboration Group was established to research and develop a glass scintillator with high density, high light yields and fast decay time. Through continuous optimization, the glasses have excellent scintillation performance with a light yield of 1000 ph/MeV and a density of 6 g/cm3. Moreove

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Yanagida, Takayuki, Daisuke Nakauchi, Takumi Kato, and Noriaki Kawaguchi. "(Invited) Photoluminescence and Scintillation Properties of Heavy Single Crystal Scintillators for X- and Gamma-Ray Detection." ECS Meeting Abstracts MA2024-02, no. 51 (2024): 3548. https://doi.org/10.1149/ma2024-02513548mtgabs.

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Scintillators are one of the luminescent materials, and have a function to convert a quantum of ionizing radiation to thousands of low energy photons immediately via interactions between the material and ionizing radiation [1,2]. Generally, scintillators are combined with photodetectors, and when the scintillation photons are emitted from the scintillator, photodetectors convert them to electrical signals. When the target ionizing radiation is high energy photons such as X- and gamma-rays, heavy materials are preferable for scintillators since the detection efficiency against high energy photo

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Takebuchi, Yuma, Keitaro Tezuka, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi та Takayuki Yanagida. "Αlpha-Ray Detection Properties of Spinel Single Crystals". ECS Meeting Abstracts MA2024-02, № 51 (2024): 3598. https://doi.org/10.1149/ma2024-02513598mtgabs.

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A scintillator is one of the phosphors for radiation detection. Typical application fields of scintillators are medical, security, and environmental dosimetry. In nuclear facilities, there are high doses of α-ray, and monitoring of α-ray is necessary. Up to now, Ag-doped ZnS is used for α-ray detection. Although Ag-doped ZnS has high light yield, the detection efficiency is limited because the material form is opaque polycrystal. Therefore, a novel scintillator with high transparency is required for α-ray detection. Spinel materials are one of the candidates for radiation detection because of

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LURYI, SERGE, and ARSEN SUBASHIEV. "LÉVY FLIGHT OF HOLES IN InP SEMICONDUCTOR SCINTILLATOR." International Journal of High Speed Electronics and Systems 21, no. 01 (2012): 1250001. http://dx.doi.org/10.1142/s0129156412500012.

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High radiative efficiency in moderately doped n- InP results in the transport of holes dominated by photon-assisted hopping, when radiative hole recombination at one spot produces a photon, whose interband absorption generates another hole, possibly far away. Due to "heavy tails" in the hop probability, this is a random walk with divergent diffusivity (process known as the Lévy flight). Our key evidence is derived from the ratio of transmitted and reflected luminescence spectra, measured in samples of different thicknesses. These experiments prove the non-exponential decay of the hole concentr

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Cartwright, L. E., J. Lambert, D. R. McKenzie, and N. Suchowerska. "The angular dependence and effective point of measurement of a cylindrical scintillation dosimeter with and without a radio-opaque marker for brachytherapy." Physics in Medicine and Biology 54, no. 7 (2009): 2217–27. http://dx.doi.org/10.1088/0031-9155/54/7/024.

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Otake, Shota, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, and Takayuki Yanagida. "Development of Europium-Doped Barium Fluorochloride Translucent Ceramic Scintillators." ECS Meeting Abstracts MA2024-02, no. 51 (2024): 3592. https://doi.org/10.1149/ma2024-02513592mtgabs.

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In solid-state ionizing radiation detectors, there are two main types of approaches: direct conversion and indirect conversion. The former generally uses semiconductor detectors (e.g., Si photodiodes) that convert radiation directly into electronic signals. The latter, on the other hand, uses phosphors and converts radiation into low-energy photons, which are then detected with a photodetector. Such phosphors are divided into scintillators and storage phosphors. Scintillators emit photons when electrons and holes generated by ionizing radiation recombine at emission centers. These are widely u

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Buck, C., B. Gramlich, and S. Schoppmann. "Novel opaque scintillator for neutrino detection." Journal of Instrumentation 14, no. 11 (2019): P11007. http://dx.doi.org/10.1088/1748-0221/14/11/p11007.

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Tafoya, L., V. Geppert-Kleinrath, E. Smith, et al. "Proton damage in (Y,Lu,Gd)₃(Al,Ga)₅O₁₂:Ce mixed garnet scintillators." Review of Scientific Instruments 93, no. 10 (2022): 103306. http://dx.doi.org/10.1063/5.0101866.

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Scintillators are vital components for nuclear instrumentation and its applications, including plasma diagnostics and imaging. As yields in controlled fusion experiments increase, the radiation tolerance of scintillator candidates for use in instrumentation is of particular importance. High radiation exposure can damage scintillating materials and alter the optical properties. The effects of radiation damage in Ce-doped mixed garnet ceramics over the compositional range (Y,Gd,Lu)3(Al,Ga)5O12 are investigated using optical techniques. The samples were exposed to 200 keV protons to an accumulate

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Yamamoto, Seiichi, Kei Kamada, Masao Yoshino, Akira Yoshikawa, Naoki Sunaguchi, and Jun Kataoka. "Development of a capillary plate based fiber-structured ZnS(Ag) scintillator." Journal of Instrumentation 17, no. 08 (2022): T08005. http://dx.doi.org/10.1088/1748-0221/17/08/t08005.

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Abstract Silver-doped zinc sulfide (ZnS(Ag)) is an opaque powder scintillator that is mainly used for detection or imaging of charged particles such as alpha particles. Since ZnS(Ag) is not transparent, the thickness of ZnS(Ag) was limited to ∼10 μm. If a thicker ZnS(Ag) scintillator could be developed, it would be useful for studies such as high-energy particle ion detection as well as beta particle or gamma photon detection. We developed a ZnS(Ag) fiber-structured scintillator using a capillary plate in which ZnS(Ag) powder was encapsulated in the capillaries. The thickness of the capillary

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Tsubota, Youichi, Kenji Kobayashi, Tatsuya Ishii, Misaki Hirato, Satoshi Shioya та Takahiro Nakagawa. "Development of α-ray visualization survey meter in high gamma and neutron background environment". Radiation Protection Dosimetry 200, № 16-18 (2024): 1676–80. http://dx.doi.org/10.1093/rpd/ncae169.

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Abstract A survey meter was developed to reliably detect and visualize surface contamination of suits and objects by α-nuclides in high γ/n-rays background radiation environment. The survey meter features a semi-opaque ZnS:Ag scintillator mounted directly onto a multi-anode photomultiplier tube (MA-PMT) and amplification circuits, ensuring output gain equalization for all channels. α-ray events induce localized light emission in thin-film scintillators. By directly mounting the scintillator, diffusion of light before reaching the MA-PMT is suppressed, concentrating it in just a few channels, t

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Thèses sur le sujet "Scintillation opaque"

Gazzini, Raphaël. "Neutrino Physics with the New LiquidO Detection Technology and its Experimental Demonstration." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASP122.

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L'étude des neutrinos a été un important moteur de découverte depuis la première proposition de l'existence de cette particule par Pauli en 1930. Les détecteurs a milieu transparent liquide sont au premier plan de ce relativement nouveau champ de la Physique. Ces détecteurs utilisent l'émission de lumière causée par les particules-filles des interactions de neutrinos pour caractériser cette particule furtive ainsi que ses nombreuses possibles sources. Le taux d'interaction extrêmement faible du neutrino a encouragé les Physiciens a développer des détecteurs de plus en plus volumineux pour augm

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Actes de conférences sur le sujet "Scintillation opaque"

Bezerra, T. J. C., B. J. Cattermole, A. Earle, et al. "Muon detection with an opaque scintillator detector prototype." In 2024 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector Conference (RTSD). IEEE, 2024. http://dx.doi.org/10.1109/nss/mic/rtsd57108.2024.10657722.

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Dahmane, A., A. Hourlier, M. A. Verdier, R. Mastrippolito, A. Cabrera, and D. Brasse. "Light Propagation Modeling in a Liquid Opaque Scintillator Detector." In 2023 IEEE Nuclear Science Symposium, Medical Imaging Conference and International Symposium on Room-Temperature Semiconductor Detectors (NSS MIC RTSD). IEEE, 2023. http://dx.doi.org/10.1109/nssmicrtsd49126.2023.10338600.

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Wilhelm, A. S., and I. Jovanovic. "Investigation of gamma-ray detection with an opaque liquid scintillator." In 2023 IEEE Nuclear Science Symposium, Medical Imaging Conference and International Symposium on Room-Temperature Semiconductor Detectors (NSS MIC RTSD). IEEE, 2023. http://dx.doi.org/10.1109/nssmicrtsd49126.2023.10338701.

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