Scintillating fibre detectors combine sub-mm resolution particle tracking, precise measurements of the particle stopping power and sub-ns time resolution. Typically, fibres are read out with silicon photomultipliers (SiPM). Hence, if fibres with a few hundred $$\upmu $$ m diameter are used, either they are grouped together and coupled with a single SiPM, losing spatial resolution, or a very large number of electronic channels is required. In this article we propose and provide a first demonstration of a novel configuration which allows each individual scintillating fibre to be read out regardless of the size of its diameter, by imaging them with Single-Photon Avalanche Diode (SPAD) array sensors. Differently from SiPMs, SPAD array sensors provide single-photon detection with single-pixel spatial resolution. In addition, O(us) or faster coincidence of detected photons allows to obtain noise-free images. Such a concept can be particularly advantageous if adopted as a neutrino active target, where scintillating fibres alternated along orthogonal directions can provide isotropic, high-resolution tracking in a dense material and reconstruct the kinematics of low-momentum protons (down to 150 MeV/c), crucial for an accurate characterisation of the neutrino-nucleus cross section. In this work the tracking capabilities of a bundle of scintillating fibres coupled to SwissSPAD2 is demonstrated. The impact of such detector configuration in GeV-neutrino experiments is studied with simulations and reported. Finally, future plans, including the development of a new SPAD array sensor optimised for neutrino detection, are discussed.
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"full_name": "Kaneyasu, Kodai" }, { "affiliations": [ { "country": "Switzerland", "value": "Institute for Particle Physics and Astrophysics (IPA), ETH Z\u00fcrich, Ramistrasse, Z\u00fcrich, 8093, Switzerland", "organization": "ETH Z\u00fcrich" } ], "surname": "Sgalaberna", "email": "davide.sgalaberna@cern.ch", "full_name": "Sgalaberna, Davide", "given_names": "Davide" }, { "affiliations": [ { "country": "Switzerland", "value": "Advanced Quantum Architecture Lab (AQUA), EPFL, Rue de la Maladi\u00e8re, Neuch\u00e2tel, 2000, Switzerland", "organization": "Advanced Quantum Architecture Lab (AQUA), EPFL" } ], "surname": "Bruschini", "given_names": "Claudio", "full_name": "Bruschini, Claudio" }, { "affiliations": [ { "country": "Switzerland", "value": "Advanced Quantum Architecture Lab (AQUA), EPFL, Rue de la Maladi\u00e8re, Neuch\u00e2tel, 2000, Switzerland", "organization": "Advanced Quantum Architecture Lab (AQUA), EPFL" } ], "surname": "Charbon", "given_names": "Edoardo", "full_name": "Charbon, Edoardo" }, { "affiliations": [ { "country": "Switzerland", "value": "Institute for Particle Physics and Astrophysics (IPA), ETH Z\u00fcrich, Ramistrasse, Z\u00fcrich, 8093, Switzerland", "organization": "ETH Z\u00fcrich" } ], "surname": "Kose", "given_names": "Umut", "full_name": "Kose, Umut" }, { "affiliations": [ { "country": "Switzerland", "value": "Institute for Particle Physics and Astrophysics (IPA), ETH Z\u00fcrich, Ramistrasse, Z\u00fcrich, 8093, Switzerland", "organization": "ETH Z\u00fcrich" } ], "surname": "Li", "given_names": "Botao", "full_name": "Li, Botao" }, { "affiliations": [ { "country": "Switzerland", "value": "Advanced Quantum Architecture Lab (AQUA), EPFL, Rue de la Maladi\u00e8re, Neuch\u00e2tel, 2000, Switzerland", "organization": "Advanced Quantum Architecture Lab (AQUA), EPFL" } ], "surname": "Mos", "given_names": "Paul", "full_name": "Mos, Paul" }, { "affiliations": [ { "country": "Switzerland", "value": "Advanced Quantum Architecture Lab (AQUA), EPFL, Rue de la Maladi\u00e8re, Neuch\u00e2tel, 2000, Switzerland", "organization": "Advanced Quantum Architecture Lab (AQUA), EPFL" } ], "surname": "Wayne", "given_names": "Michael", "full_name": "Wayne, Michael" }, { "affiliations": [ { "country": "Switzerland", "value": "Institute for Particle Physics and Astrophysics (IPA), ETH Z\u00fcrich, Ramistrasse, Z\u00fcrich, 8093, Switzerland", "organization": "ETH Z\u00fcrich" } ], "surname": "Weber", "given_names": "Tim", "full_name": "Weber, Tim" }, { "affiliations": [ { "country": "Switzerland", "value": "Institute for Particle Physics and Astrophysics (IPA), ETH Z\u00fcrich, Ramistrasse, Z\u00fcrich, 8093, Switzerland", "organization": "ETH Z\u00fcrich" } ], "surname": "Wu", "given_names": "Jialin", "full_name": "Wu, Jialin" } ], "titles": [ { "source": "Springer", "title": "Demonstration of particle tracking with scintillating fibres read out by a SPAD array sensor and application as a neutrino active target" } ], "dois": [ { "value": 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Typically, fibres are read out with silicon photomultipliers (SiPM). Hence, if fibres with a few hundred $$\\upmu $$ <math> <mi>\u03bc</mi> </math> m diameter are used, either they are grouped together and coupled with a single SiPM, losing spatial resolution, or a very large number of electronic channels is required. In this article we propose and provide a first demonstration of a novel configuration which allows each individual scintillating fibre to be read out regardless of the size of its diameter, by imaging them with Single-Photon Avalanche Diode (SPAD) array sensors. Differently from SiPMs, SPAD array sensors provide single-photon detection with single-pixel spatial resolution. In addition, O(us) or faster coincidence of detected photons allows to obtain noise-free images. Such a concept can be particularly advantageous if adopted as a neutrino active target, where scintillating fibres alternated along orthogonal directions can provide isotropic, high-resolution tracking in a dense material and reconstruct the kinematics of low-momentum protons (down to 150 MeV/c), crucial for an accurate characterisation of the neutrino-nucleus cross section. In this work the tracking capabilities of a bundle of scintillating fibres coupled to SwissSPAD2 is demonstrated. The impact of such detector configuration in GeV-neutrino experiments is studied with simulations and reported. Finally, future plans, including the development of a new SPAD array sensor optimised for neutrino detection, are discussed." } ], "imprints": [ { "date": "2024-02-27", "publisher": "Springer" } ] }