“Super-Kamiokande” [1] (Super-Kamiokande or Super-K) is a neutrino detector , which is an upgraded model of Kamiokande-II . Designed to search for the hypothetical decay of a proton , to study neutrinos, and also to register neutrino supernova explosions . The detector is located in a Japanese laboratory at a depth of 1 km in the Kamioka zinc mine [2] , 290 km north of Tokyo . The construction was carried out by a consortium of American and Japanese researchers and was completed in 1996 .
The Super Kamiokande detector is a stainless steel tank in the form of a cylinder with a height of 41.4 m and a base diameter of 39.3 m, filled with 50 thousand tons of specially purified water. On the walls of the tank are placed 11146 photomultipliers ( PMTs ). These are extremely light-sensitive devices: when even one quantum of light hits their surface , they generate an electrical impulse, which is then processed by a special electronic system. The detector is also equipped with a huge amount of electronics, computers, calibration devices and equipment for water purification.
The Japanese scientist Takaaki Kajita , who received the 2015 Nobel Prize in Physics for discovering neutrino oscillations , worked at Super Kamiokand. [3]
Notes
- ↑ Kamioka neutrino observatory // Iceland - Clericalism. - M .: Big Russian Encyclopedia, 2008. - P. 632. - ( Big Russian Encyclopedia : [in 35 vols.] / Ch. Ed. Yu. S. Osipov ; 2004—2017, vol. 12). - ISBN 978-5-85270-343-9 .
- ↑ Without a rope, not a foot. The most terrible quarries and mines | OrangeSmile.com . www.orangesmile.com. Date of treatment August 3, 2019.
- ↑ “For the theory - Leninsky, for the experiment - Nobel // Newspaper.Ru