Modelisation of Light Transmission through Surfaces with Thin Film Optical Coating in Geant4
| Autor: | L. Cappellugola, S. Curtoni, M. Dupont, C.-H. Sung, V. Sharyy, C. Thibault, D. Yvon, C. Morel |
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| Přispěvatelé: | Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
thin film optical coating
scintillating crystal optical films crystal face Geant4 visible spectra Crystals Optical imaging Coatings lead compounds photocathodes passivation frustrated transmission [PHYS]Physics [physics] thin film sensors scintillation scintillation light wavelength PbWO4 crystal Computational modeling light transmission ultraviolet spectra Surface waves antireflection coatings solid scintillation detectors Optical variables control scintillation photons passivation film coating photodetectors Optical refraction coated interface |
| Zdroj: | 2021 IEEE Nuclear Science Symposium (NSS) and Medical Imaging Conference (MIC) and 28th International Symposium on Room-Temperature Semiconductor Detectors 2021 IEEE Nuclear Science Symposium (NSS) and Medical Imaging Conference (MIC) and 28th International Symposium on Room-Temperature Semiconductor Detectors, Oct 2021, Yokohama, Japan. pp.1-5, ⟨10.1109/NSS/MIC44867.2021.9875513⟩ |
| DOI: | 10.1109/NSS/MIC44867.2021.9875513⟩ |
| Popis: | International audience; Surfaces with optical coating may be used to improve light transmission between a scintillating crystal and a photodetector. For the ClearMind project, we develop a detection module made of a PbWO4 crystal and a photocathode directly deposited on a thin passivation film coating the crystal face. Scintillation photons will then be transmitted through this thin film that has a thickness of the order of the scintillation light wavelength. Interference phenomena and frustrated transmission beyond the limit angle have then to be considered. We present the modelisation of light transmission through surfaces with optical coating with Geant4, which is achieved by defining a new method that provides a probability of transmission of a visible-UV photons through the coated interface |
| Databáze: | OpenAIRE |
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