Licht-im-Terrarium: Literaturdatenbank
Licht-im-Terrarium: Literaturdatenbank |
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Ruggeri, A. C., Funari, R., Pallotti, D. K., Nitto, A. D., Ventura, B. D., & Langella, A., et al. (2025). Optical characterization of uv-transmitting acrylics for the hyper-kamiokande multi-pmt module. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1076, 170488. Added by: Sarina (10/04/2026, 12:50) Last edited by: Sarina (10/04/2026, 12:54) |
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| Resource type: Journal Article DOI: 10.1016/j.nima.2025.170488 ID no. (ISBN etc.): 0168-9002 BibTeX citation key: Ruggeri2025 View all bibliographic details  |
Categories: General Keywords: Acrylic-material optical characterization, Hyper-Kamiokande, Large-volume neutrino Cherenkov detector, Multi photomultiplier tube (mPMT), Neutrino experiment, Neutrino oscillation experiment Creators: Bianco, Boiano, Funari, Langella, Lavitola, Luca, Machado, Maddalena, Nitto, Nola, Pallotti, Riccio, Rosa, Ruggeri, Velotta, Ventura Collection: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
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Meine Sichtweise (Keine vollständige Zusammenfassung des Artikels! Meine Meinung muss nicht mit der Meinung der Autoren übereinstimmen! Bitte lesen Sie auch die Originalarbeit!)
Transmissionsmessung 250 - 400 nm von * Evonik Plexiglas GS UVT 2mm - 18 mm Dicke * Poly One Polycast UVT 5 - 13 mm Dicke Added by: Sarina |
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The Hyper-K project aims to construct a large-volume underground water Cherenkov detector to address unresolved questions in fundamental particle physics. The Hyper-Kamiokande far detector (HK) will incorporate various types of photodetectors, among which the multi-photomultiplier tube (mPMT) optical module providing critical directional information. To house the electronics and photodetectors, the mPMT vessel must meet specific criteria: (i) transparency in the visible and ultraviolet ranges, covering the spectrum of Cherenkov photons; (ii) an airtight seal to maintain optimal functionality in a dry, controlled environment; and (iii) resilience to the hydrostatic pressure of the HK water tank, which reaches 0.8 MPa. While glass has traditionally been used to fulfill these requirements, its intrinsic radioactivity may compromise the sensitivity of Hyper-K measurements. Acrylic that is transparent, impermeable and robust, by contrast, offers the advantage of a low-radioactivity. Optical characterizations were performed on various acrylic samples, revealing that optical performance is influenced not only by the material composition but also by the production processes used to achieve different thicknesses. Our findings support the use of acrylic as a viable alternative, but it is essential to rigorously monitor the material’s performance during mass production to ensure optimal and uniform detector performance.
Added by: Sarina Last edited by: Sarina |