Deep Underground Neutrino Experiment
Longitudinal section of the beamline for the experiment from the Main Injector
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| Alternative names | DUNE |
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neutrino detector 
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| Website | lbne |
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The Deep Underground Neutrino Experiment (DUNE), formerly the Long Baseline Neutrino Experiment (LBNE) is a proposed neutrino experiment with a near detector at Fermilab and a far detector at the Sanford Underground Research Facility which will observe neutrinos produced at Fermilab. It will fire an intense beam of trillions of neutrinos from a production facility near Fermilab (in Illinois) over a distance of 1,300 kilometres (810 mi) to an instrumented multi-kiloton volume of liquid argon located at the Sanford Lab in South Dakota. The proposed detector is to be about 12 metres (39 ft) across. Part of the path of the neutrinos would take them 30 kilometres (19 mi) underground (the beam itself will start 1.5 kilometres (4,900 ft) under the surface).
The primary science objectives of DUNE are
The far detector current design is for four modules of instrumented liquid argon with a fiducial volume of 10 kilotons each. The first two modules are expected to be complete in 2024, with the beam operational in 2026. The final module is planned to be operational in 2027.
The Particle Physics Project Prioritization Panel (P5) concluded in its 2014 report that the research activity being pursued by LBNE "should be reformulated under the auspices of a new international collaboration, as an internationally coordinated and internationally funded program, with Fermilab as host." The LBNE collaboration was officially dissolved on Jan. 30, 2015, shortly after the new collaboration recommended by P5 was formed on Jan. 22, 2015. The new collaboration selected the name Deep Underground Neutrino Experiment (DUNE).
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