新春走基层·记者体验360行｜扎根地下2400米 护航前沿科学探索——走进深地运维人的一天

Core Viewpoint - The article highlights the ongoing research at the Jinping Underground Laboratory, focusing on the exploration of dark matter and the advancements in the facility that enhance its capabilities for scientific experiments [1][4]. Group 1: Facility Overview - The Jinping Underground Laboratory is located 2400 meters underground, making it one of the world's most "pure" deep underground laboratories with cosmic ray flux only one hundred millionth of that at the surface [3][4]. - The laboratory has undergone significant upgrades, transforming it into a "finely decorated" facility, enhancing its operational capabilities since its initial launch [3][4]. - The facility is equipped with a new ventilation system that can deliver 45,000 cubic meters of fresh air per hour, ensuring a comfortable environment for researchers [4]. Group 2: Research Activities - The laboratory supports various research teams, including the CDEX and PandaX groups, which are engaged in dark matter detection experiments, with ongoing upgrades to their detection equipment [6][8]. - The CDEX team has achieved a significant milestone by completing the first liquid nitrogen filling necessary for dark matter experiments, while the PandaX team is working on upgrading their detector from 4 tons to 20 tons to increase the chances of capturing dark matter [6][8]. - The laboratory is also home to other research initiatives, such as nuclear astrophysics experiments, showcasing a diverse range of scientific inquiries being conducted [9]. Group 3: Operational Support - A dedicated team of over 50 operational staff is responsible for the maintenance and inspection of critical equipment, ensuring the smooth operation of the laboratory during the holiday season [6][9]. - The operational team collaborates with various research groups to coordinate resources and maintain the functionality of essential systems, highlighting the importance of support in achieving scientific goals [6][9].