There are 50,000 tons of ultra-pure water hidden in the underground 1000 meters. What is the purpose of Japan for more than 20 years?

Japan has stored 50,000 tons of ultra-pure water at the depth of underground 1000 meters. What is the purpose of more than 20 years?

There is a very mysterious building in Japan, hidden in the depth of 1000 meters underground. There are 50000 tons of water in this building. What is this for? Moreover, this building has been built for 20 years, and it has also brought many Nobel Prizes to Japan. What is this mysterious building?

This building with 50,000 tons of water underground is called super god Gunkand. Kamoka detector is the largest detector for detecting neutrinos in the world. It is located in Kamokamachi, Feiqing City, Gifu Prefecture. Scientists use them to detect neutrinos or look for things in the sun. This detector is a cylindrical container with a diameter of about 40 meters and a height of 4 1 meter. It is said that this Shengang detector has stored 50,000 tons of high-purity pure water. Its internal water tank is an upper detection area made of stainless steel, with a diameter of 33 meters and a height of 36 meters, and the other parts are external detection areas. In this big water tank, more than 10 thousand photomultiplier tubes are installed around. This photomultiplier tube is used to detect the Lenkov radiation produced by neutrinos passing through water. Shengang probe was put into use in 1983, which brought a series of important scientific discoveries to mankind.

1987, the super kamioka detected neutrons in the large magellanic cloud, which were released by a supernova. They burst faster than gamma rays and reach the earth about three hours earlier. Because of this discovery, people predict that supernovae may erupt in the future. So this detector is built below 1000 meters. Why?

Physicists believe that the world we live in is a combination of various particles, including neutrinos. But science is needed to confirm people's ideas. Physicists want to continue to explore neutrinos, so they want to build this mysterious Kamoka detector. The reason why it is covered in the stratum nearly 1000 meters deep is that the radiation signal in the universe will affect the research, so it should be shielded. Moreover, the water in this Shengang detector must be very clean, and the stored water is pure water, which must go through a series of treatments to remove other impurities in the water, such as ions and microorganisms. So as to achieve 99.99% pure water.

Because neutrons are very small and fast, and after research, neutrons are close to the speed of light. On the earth, neutrons exist all the time. About 65.438+000 billion neutrons pass through your skin every second, but people don't feel it. If you want to observe clearly, you must be in a very clean, pure place without any impurities. Therefore, to build this Kamoka detector in Japan, 50,000 tons of pure water must be stored underground 1000 meters, so that people can observe it immediately when the neutron passes by. It is said that the completion of this detector cost about 700 million RMB, which is a huge sum. And the Japanese won many Nobel Prizes for this Kamoka detector.

In 2002, Japanese scientist Mr. Masatoshi Koshiba won the Nobel Prize in Physics for his discovery of neutrinos by Kamoka detector and super-kamiokande. In 20 15, Masatoshi Koshiba's apprentice Takaaki Kajita and Canadian Arthur MacDonald discovered the information of neutrino oscillation and won the Nobel Prize in physics, which made the Japanese proud. At present, the top-level Shengang detector is also under construction and is expected to be fully put into use in 2027. It is a newly upgraded detector, which will be more stable and the sensitivity will be greatly improved. The Japanese are also increasingly looking forward to the completion of the top Kamoka detector, which is expected to bring them one Nobel Prize in physics after another.

Camoka detector has confirmed a lot of physical knowledge for us and explained some substances in the universe. The contributions of these physicists to the scientific community are beyond words. In 2027, a brand-new top-level Kobelco detector will also be put into use. Let's look forward to new discoveries in physics!

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