Speaker
Description
Hyper-Kamiokande (HK) is a next-generation international neutrino experiment currently under construction in Japan, designed to address fundamental open questions in particle physics and astrophysics, including proton decay and neutrino properties. HK will be able to detect Earth-crossing, atmospheric, solar, cosmic, and accelerator neutrinos. Expected to start data collection in 2028, HK will require periodic calibration to achieve its physics goals.
Low-energy calibration of the HK far detector will require using multiple sources, one is the Deuterium-Tritium neutron generator (DTG), which will be used to generate a radioactive N16 cloud at multiple positions inside the detector.
A detailed simulation of the ^16 N cloud production and decay was carried out, with the resulting daughter particles propagated through the detector volume using the dedicated HK simulation framework. Energy and vertex reconstructions were performed using multiple reconstruction algorithms. Following reconstruction, controlled imperfections were introduced into the water properties, and their impact on the reconstructed energies and vertices was studied.
The DTG device is planned to be deployed using a computer-controlled crane system to ensure precise positioning while maintaining detector cleanliness and safety. Photogrammetry techniques will be employed to verify the deployment position prior to neutron firing, providing an independent confirmation of source location.
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