(EYESONSCI)CHINA-SICHUAN-CHINA JINPING UNDERGROUND LABORATORY-DARK MATTER (CN)

(EYESONSCI)CHINA-SICHUAN-CHINA JINPING UNDERGROUND LABORATORY-DARK MATTER (CN)

(230715) -- XICHANG, July 15, 2023 (Xinhua) -- A researcher rubs the oxide layer of copper samples to do radiation examination at the China Jinping Underground Laboratory in southwest China's Sichuan Province, July 3, 2023. Jinping Mountain, located in the drainage basin of the Yalong River, the largest tributary of Jinsha River, has the highest altitude of 4,410 meters. The China Jinping Underground Laboratory (CJPL) is located in the middle of the 17.5 kilometer-long Jinping tunnel in southwest China's Sichuan Province. The laboratory, inaugurated in 2010, is an underground research facility with a rock overburden of about 2,400 meters. CJPL-I, the first phase of China Jinping Underground Laboratory (CJPL), has an experimental space of 4000 cubic meters. Since its launch, the China Dark Matter Experiment (CDEX) led by Tsinghua University and the PandaX led by Shanghai Jiaotong University have achieved more than 30 internationally leading dark matter research results. At present, the construction of the De

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