Development of an in-situ calibration device of firn properties for Askaryan neutrino detectors
High energy neutrinos (E > 1017 eV) are detected cost-efficiently via the Askaryan effect in ice, where a particle cascade induced by the neutrino interaction produces coherent radio emission that can be picked up by antennas installed below the surface. A good knowledge of the near surface ice (...
Published in: | Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) |
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Uppsala universitet, Högenergifysik
2022
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ftuppsalauniv:oai:DiVA.org:uu-518040 2024-01-14T10:02:05+01:00 Development of an in-situ calibration device of firn properties for Askaryan neutrino detectors Beise, Jakob Glaser, Christian 2022 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-518040 https://doi.org/10.22323/1.395.1069 eng eng Uppsala universitet, Högenergifysik Sissa Pos proceedings of science 395 37th International Cosmic Ray Conference (ICRC 2021) orcid:0000-0002-7448-4189 orcid:0000-0001-5998-2553 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-518040 doi:10.22323/1.395.1069 ISI:001081844903025 info:eu-repo/semantics/openAccess Subatomic Physics Subatomär fysik Accelerator Physics and Instrumentation Acceleratorfysik och instrumentering Conference paper info:eu-repo/semantics/conferenceObject text 2022 ftuppsalauniv https://doi.org/10.22323/1.395.1069 2023-12-20T23:32:01Z High energy neutrinos (E > 1017 eV) are detected cost-efficiently via the Askaryan effect in ice, where a particle cascade induced by the neutrino interaction produces coherent radio emission that can be picked up by antennas installed below the surface. A good knowledge of the near surface ice (aka firn) properties is required to reconstruct the neutrino properties. In particular, a continuous monitoring of the snow accumulation (which changes the depth of the antennas) and the index-of-refraction profile are crucial for an accurate determination of the neutrino's direction and energy. We present an in-situ calibration system that extends the radio detector station with a radio emitter to continuously monitor the firn properties by measuring time differences of direct and reflected (off the surface) signals (D'n'R). We optimized the station layout in a simulation study and quantified the achievable precision. We present 14 months of data of the ARIANNA detector on the Ross Ice Shelf, Antarctica, where a prototype of this calibration system was successfully used to monitor the snow accumulation with unprecedented precision of 1 mm. We explore and test several algorithms to extract the D'n'R time difference from noisy data (including deep learning). This constitutes an in-situ test of the neutrino vertex distance reconstruction using the D’n’R technique which is needed to determine the neutrino energy. Conference Object Antarc* Antarctica Ice Shelf Ross Ice Shelf Uppsala University: Publications (DiVA) Ross Ice Shelf Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) 1069 |
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Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Subatomic Physics Subatomär fysik Accelerator Physics and Instrumentation Acceleratorfysik och instrumentering |
spellingShingle |
Subatomic Physics Subatomär fysik Accelerator Physics and Instrumentation Acceleratorfysik och instrumentering Beise, Jakob Glaser, Christian Development of an in-situ calibration device of firn properties for Askaryan neutrino detectors |
topic_facet |
Subatomic Physics Subatomär fysik Accelerator Physics and Instrumentation Acceleratorfysik och instrumentering |
description |
High energy neutrinos (E > 1017 eV) are detected cost-efficiently via the Askaryan effect in ice, where a particle cascade induced by the neutrino interaction produces coherent radio emission that can be picked up by antennas installed below the surface. A good knowledge of the near surface ice (aka firn) properties is required to reconstruct the neutrino properties. In particular, a continuous monitoring of the snow accumulation (which changes the depth of the antennas) and the index-of-refraction profile are crucial for an accurate determination of the neutrino's direction and energy. We present an in-situ calibration system that extends the radio detector station with a radio emitter to continuously monitor the firn properties by measuring time differences of direct and reflected (off the surface) signals (D'n'R). We optimized the station layout in a simulation study and quantified the achievable precision. We present 14 months of data of the ARIANNA detector on the Ross Ice Shelf, Antarctica, where a prototype of this calibration system was successfully used to monitor the snow accumulation with unprecedented precision of 1 mm. We explore and test several algorithms to extract the D'n'R time difference from noisy data (including deep learning). This constitutes an in-situ test of the neutrino vertex distance reconstruction using the D’n’R technique which is needed to determine the neutrino energy. |
format |
Conference Object |
author |
Beise, Jakob Glaser, Christian |
author_facet |
Beise, Jakob Glaser, Christian |
author_sort |
Beise, Jakob |
title |
Development of an in-situ calibration device of firn properties for Askaryan neutrino detectors |
title_short |
Development of an in-situ calibration device of firn properties for Askaryan neutrino detectors |
title_full |
Development of an in-situ calibration device of firn properties for Askaryan neutrino detectors |
title_fullStr |
Development of an in-situ calibration device of firn properties for Askaryan neutrino detectors |
title_full_unstemmed |
Development of an in-situ calibration device of firn properties for Askaryan neutrino detectors |
title_sort |
development of an in-situ calibration device of firn properties for askaryan neutrino detectors |
publisher |
Uppsala universitet, Högenergifysik |
publishDate |
2022 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-518040 https://doi.org/10.22323/1.395.1069 |
geographic |
Ross Ice Shelf |
geographic_facet |
Ross Ice Shelf |
genre |
Antarc* Antarctica Ice Shelf Ross Ice Shelf |
genre_facet |
Antarc* Antarctica Ice Shelf Ross Ice Shelf |
op_relation |
Pos proceedings of science 395 37th International Cosmic Ray Conference (ICRC 2021) orcid:0000-0002-7448-4189 orcid:0000-0001-5998-2553 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-518040 doi:10.22323/1.395.1069 ISI:001081844903025 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.22323/1.395.1069 |
container_title |
Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) |
container_start_page |
1069 |
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1788056924465397760 |