Status of the LBNF Cryogenic System

Cryogenic Engineering Conference 2017

材料科学;物理学

Montanari, D.^1 ; Adamowski, M.^1 ; Bremer, J.^2 ; Delaney, M.^1 ; Diaz, A.^2 ; Doubnik, R.^1 ; Haaf, K.^1 ; Hentschel, S.^1 ; Norris, B.^1 ; Voirin, E.^1

Fermi National Accelerator Laboratory, PO Box 500, Batavia

IL

60510, United States^1

European Organization for Nuclear Research (CERN), Geneva-23

1211, Switzerland^2

关键词: Current configuration;    Functional requirement;    International engineering;    Modes of operation;    Modular detectors;    Neutrino experiments;    Parts per trillion;    Research facilities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/278/1/012117/pdf
DOI  :  10.1088/1757-899X/278/1/012117

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The Sanford Underground Research Facility (SURF) will host the Deep Underground Neutrino Experiment (DUNE), an international multi-kiloton Long-Baseline neutrino experiment that will be installed about a mile underground in Lead, SD. In the current configuration four cryostats will contain a modular detector and a total of 68,400 tons of ultrapure liquid argon, with a level of impurities lower than 100 parts per trillion of oxygen equivalent contamination. The Long-Baseline Neutrino Facility (LBNF) provides the conventional facilities and the cryogenic infrastructure to support DUNE. The system is comprised of three sub-systems: External/Infrastructure, Proximity and Internal cryogenics. An international engineering team will design, manufacture, commission, and qualify the LBNF cryogenic system. This contribution presents the modes of operations, layout and main features of the LBNF cryogenic system. The expected performance, the functional requirements and the status of the design are also highlighted.