Design, performance, and analysis of a measurement of optical properties of antarctic ice below 400 nm
The IceCubeNeutrino Observatory, located at the geographic South Pole, is theworld's largest neutrino telescope, instrumenting 1 km(3) of Antarctic ice with 5160 photosensors to detect Cherenkov light. For the IceCube Upgrade, to be deployed during the 2022-23 polar field season, and the enlarg...
Published in: | Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) |
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Main Authors: | , , , , , , , , , |
Format: | Conference Object |
Language: | English |
Published: |
Uppsala universitet, Högenergifysik
2022
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Subjects: | |
Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-518512 https://doi.org/10.22323/1.395.1057 |
Summary: | The IceCubeNeutrino Observatory, located at the geographic South Pole, is theworld's largest neutrino telescope, instrumenting 1 km(3) of Antarctic ice with 5160 photosensors to detect Cherenkov light. For the IceCube Upgrade, to be deployed during the 2022-23 polar field season, and the enlarged detector IceCube-Gen2 several new optical sensor designs are under development. One of these optical sensors, the Wavelength-shifting Optical Module (WOM), uses wavelength-shifting and light-guiding techniques to measure Cherenkov photons in the UV range from 250 nm to 380 nm. In order to understand the potential gains from this new technology, a measurement of the scattering and absorption lengths of UV light was performed in the SPICEcore borehole at the South Pole during the winter seasons of 2018/2019 and 2019/2020. For this purpose, a calibration device with a UV light source and a detector using the wavelength shifting technology was developed. We present the design of the developed calibration device, its performance during the measurement campaigns, and the comparison of data to a Monte Carlo simulation. For complete list of authors see http://dx.doi.org/10.22323/1.395.1057 |
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