Development of cost-effective optical modules based on wavelength-shifting fibres for future neutrino telescopes

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IceCube has discovered the high-energy astrophysical neutrino flux, opening a new window to observe the Universe. However, the origin of this emission still needs to be determined. To discover the sources of high-energy neutrinos and probe the nature of high-energy particle accelerators, we need to build a larger-scale high-energy neutrino telescope that will allow us to better combine neutrino and electromagnetic wave observations. The proposed international collaboration aims to develop cost-efficient optical sensor modules using commercially available wavelength-shifting fibres. Using commercially mass-producible fibres as the photon-capturing devices, this instrument will have smaller optical sensors and glass vessels than are currently deployed in existing neutrino telescopes. This reduces the cost of detector modules as well as the background from the impurities from the glass. The international collaborators provide essential expertise on the overall detector simulation and development of new sensor modules. The shared infrastructure in this proposed collaboration will allow us to test the feasibility of the proposed devices. The proposed international R&D research will provide excellent training opportunities for highly qualified personnel to obtain highly valuable skills for both academic and industrial careers. Working with collaborators with a strong history of supporting equity, diversity, and inclusion will expand HQP's learning of the topics.