Outline of the Detector

The tank top

Electronics huts and several calibration equipment are located on the tank of the Super-Kamiokande. The roof of the cavity is a dome shape in order to disperse the weight of the 1000m mountain above the tank.




The rock in the mine contains the radioactive material (radon) whose decay products become one of the background sources to neutrino observations. To avoid contamination of the radioactive material emitted from the rock, the ceiling and the wall are sealed by the polyethylene Mineguard . Furthermore, a "radon-free" air is piped into the tank top from the outside to further hold back contaminated mine air.


About Radon-Free air system




Outline of the Detector