Another view of the NOvA far detector (IMAGE)

California Institute of Technology

Another view of the NOvA far detector

Caption

Another view of the NOvA far detector in Minnesota. The detector comprises 344,000 individual cells each 50 feet long and filled with a mixture of mineral oil and dissolved light-emitting chemicals. When a neutrino interacts in the detector, it produces a spray of high-energy particles that stream through the cells and light them up. Researchers detect and analyze that light to study how the neutrinos have changed over their journey from Fermilab.

Credit

Reidar Hahn/Fermilab

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