NOvA near detector complete

A PPD technician installs the last avalanche photodiode, better known as an APD, on the NOvA near detector. Photo: Ting Miao, PPD

On Tuesday, Aug. 12, the NOvA collaboration finished instrumenting the final block of the NOvA near detector, with all electronics turned on. This marks the conclusion of roughly six months of instrumentation work on the detector.

Located 350 feet underground on the Fermilab site, the 330-ton NOvA near detector is filled with liquid scintillator. When a neutrino interacts in the liquid scintillator, the detector’s electronics will convey the interaction’s signal, allowing scientists to measure interactions of the elusive particle.