Hyper-Kamiokande


Hyper-Kamiokande is a neutrino observatory being constructed on the site of the Kamioka Observatory, near Kamioka, Japan.
This project started in 2010 as a successor to Super-Kamiokande. It was ranked as among the 28 top priority projects of the Japanese government. Thirteen countries from three continents are involved in this program.
Construction was given final approval on 13 December 2019 and is scheduled to start in April 2020. The begin of data-taking is planned for 2027.
Hyper-Kamiokande will have a tank with a billion litres of ultrapure water, 20 times larger than the tank for Super-Kamiokande. This increased capacity will be accompanied by a proportional growth in the number of sensors. The tank for Hyper-Kamiokande will be a double cylinder 2 × 250 meters long, always approximately 40 × 40 meters, and buried 650 meters deep to reduce interference from cosmic radiation. Among the scientific objectives will be the search for proton decays.