Kamioka Observatory, Mozumi mine

node · earth

An underground neutrino observatory operated by the Institute for Cosmic Ray Research of the University of Tokyo, roughly 1,000 m below Mount Ikeno in the Mozumi mine near Hida, Gifu Prefecture. Its predecessor detector Kamiokande-II recorded part of the neutrino burst from SN 1987A on 23 February 1987 - a handful of interactions in a tank of water that constitute the only direct observation ever made of a stellar core collapsing. The rock overhead is the instrument's essential feature: it absorbs cosmic-ray muons that would otherwise swamp a signal of a few events. The site remains in use for Super-Kamiokande and is the location of the successor experiment now under construction.

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Life of a StarSpace

Evidence · 1

Detection of the SN 1987A neutrino burst at Kamiokande-II, IMB and Baksan

Timeline

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Connections · 1

SN 1987A: neutrinos from a collapsing core reach Earthparticipated_in

Assembled narrative · 1

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Observed changes · 0

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/atlas?object=SITE_KAMIOKA_OBSERVATORY