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2023.10.11 Hyper-Kamiokande

Completion of the main cavern dome section of the Hyper-Kamiokande experiment

On October 3, 2023, the dome section of the main cavity for Hyper-Kamiokande experiment, situated underground in Kamioka-cho, Hida City, Gifu Prefecture, was completed. The dome has a diameter of 69 meters and a height of 21 meters.

The completed main cavern dome section (diameter: 69m, height: 21m)

For more detail, please jump to the website of Kamioka Observatory.