Overview and status of the Long Baseline Neutrino Facility cryogenics system

[摘要] The Long Baseline Neutrino Facility (LBNF) serves to provide the infrastructure necessary to support the Deep Underground Neutrino Experiment (DUNE), a growing international experiment to study neutrino science and proton decay. Situated at the Sanford Underground Research Facility (SURF), in Lead, SD, USA, DUNE will employ detectors located within massive cryostats filled with a total of 68,400 tons of ultrapure liquid argon. LBNF provides the cryogenic infrastructure necessary to supply and maintain that argon throughout the life of DUNE, as it enables the study of neutrinos from a new and improved beamline from Fermilab, as well as the dynamics of supernovae responsible for producing the heavy elements necessary for life and the possibility of proton decay. This contribution presents the modes of operation, layout, and main features of the cryogenic systems at LBNF. Those systems expected performance, functional requirements, and overall design status is also featured.

[发布机构] Fermi National Accelerator Laboratory, PO Box 500, Batavia; IL; 60510, United States^1;European Organization for Nuclear Research (CERN), Geneva; 1211, Switzerland^2

[关键词] Cryogenic system;Functional requirement;Heavy elements;Long base line;Modes of operation;Neutrino experiments;Overall design;Research facilities