K — Super

Super-Kamiokande is the world's largest water Cherenkov detector, designed to study neutrinos from various sources and search for proton decay. It is operated by an international collaboration of about 240 researchers from roughly 50 institutes worldwide.

Contains over 11,000 20-inch PMTs that monitor the main water volume.

Contains about 1,885 8-inch PMTs that act as a "veto" to identify and exclude particles entering from outside the tank. Super K

The tank is lined with roughly 11,000 to 13,000 Photomultiplier Tubes (PMTs) .

A cylindrical stainless steel tank measuring approximately 39.3 meters in diameter and 41.4 meters in height . Medium: It contains 50,000 tons of ultra-pure water . Contains about 1,885 8-inch PMTs that act as

The detector is a feat of engineering located 1,000 meters (3,300 feet) underground to shield it from cosmic radiation.

Super-K has provided foundational evidence that has shaped modern particle physics. Medium: It contains 50,000 tons of ultra-pure water

When a neutrino interacts with water, it can produce a charged particle moving faster than the speed of light in water. This creates Cherenkov light , a faint blue flash detected by the PMTs. Scientific Achievements