Development of an Organic Plastic Scintillator based Muon Veto Operating at Sub-Kelvin Temperatures for the NUCLEUS Experiment
| Autor: | Erhart, Andreas, Wagner, Victoria, Klinkenberg, Ludwig, Lasserre, Thierry, Lhuillier, David, Nones, Claudia, Rogly, Rudolph, Savu, Vladimir, Strauss, R., Vivier, Matthieu |
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| Přispěvatelé: | Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, NUCLEUS |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
wavelength shifter: fibre
WLS Fibers Physics - Instrumentation and Detectors Physics::Instrumentation and Detectors shielding background: induced SiPM muon: detector FOS: Physical sciences Instrumentation and Detectors (physics.ins-det) scintillation counter: plastics Condensed Matter Physics Atomic and Molecular Physics and Optics cryogenics efficiency General Materials Science High Energy Physics::Experiment photomultiplier: silicon [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] Plastic Scintillator Muon Veto detector: design |
| Zdroj: | J.Low Temp.Phys. 19th International Workshop on Low Temperature Detectors 19th International Workshop on Low Temperature Detectors, Jul 2021, Online Conference, United States. pp.346-354, ⟨10.1007/s10909-022-02842-5⟩ |
| DOI: | 10.1007/s10909-022-02842-5⟩ |
| Popis: | The NUCLEUS experiment aims at measuring the coherent elastic scattering of nuclear reactor antineutrinos off nuclei using cryogenic calorimeters. Operating at an overburden of 3m.w.e., muon-induced backgrounds are expected to be dominant. It is therefore essential to develop an efficient muon veto, with a detection efficiency of more than 99%. This will be realized in NUCLEUS through a compact cube assembly of plastic scintillator panels. In order to prevent a large unshielded area where the cryostat intersects the shielding arrangement without unnecessarily increasing the induced detector dead time, a novel concept has been investigated, featuring a plastic scintillator based active muon veto operating inside the NUCLEUS cryostat at sub-Kelvin temperatures. The verification of the key physical aspects of this cryogenic muon veto detector led to the first reported measurements of organic plastic scintillators at sub-Kelvin temperatures. The functionality of the principal scintillation process of organic plastic scintillators at these temperatures has been confirmed. On the basis of these findings, a disc-shape plastic scintillator equipped with wavelength shifting fibers and a silicon photomultiplier to guide and detect the scintillation light has been developed. The NUCLEUS cryogenic muon veto will be the first of its kind to be operated at sub-Kelvin temperatures. Comment: Submitted to Journal of Low Temperature Physics, Special Issue for the 19th International Workshop on Low Temperature Detectors 19-29 July 2021 (Virtual event hold by NIST) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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