The Jinping facility, the world's deepest and largest ultra-deep underground laboratory, has been put into scientific operation

    On December 7, the civil engineering and public works of the second phase of the China Jinping Underground Laboratory's extremely deep underground ultra-low radiation background frontier physics experiment facility (referred to as the "Jinping Large Facility") were completed and the experimental conditions were met. This marks that the world's deepest and largest ultra-deep underground laboratory has officially been put into scientific operation.

    The first batch of 10 experimental project teams from universities and research institutes such as Tsinghua University, Shanghai Jiao Tong University, Beijing Normal University, China Institute of Atomic Energy, and Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, stationed to carry out scientific experiments.

    The Jinping Large Facility is located 2,400 meters underground in Jinping Mountain, Liangshan Yi Autonomous Prefecture, Sichuan Province, with a total volume of 330,000 cubic meters. The cosmic ray flux in the laboratory is only one hundred millionth that of the earth's surface, and it has many advantages such as "extremely low environmental radon emission", "extremely low environmental radiation", "ultra-low cosmic ray flux" and "ultra-clean space".

    As an important asset of the country, the Jinping facility will develop into a world-class deep-earth scientific research center covering multiple disciplines such as particle physics, nuclear astrophysics, cosmology, life sciences, rock mechanics, etc., and will help the national science and technology innovation platform "leap-forward" promote".


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