Trinity

Trinity is a neutrino observatory in development at Frisco Peak, Utah, to detect and observe high-energy astrophysical neutrinos, using techniques previously used for detecting cosmic rays and gamma rays. It is essentially a Cherenkov detector, arranged to detect the air showers due to Earth-skimming neutrinos, i.e., those that have made a shallow pass through the Earth and happened to have interacted with Earth material, resulting in particles coming up out of the ground that can trigger air showers. Cosmic rays and gamma rays do not pass through the Earth the way neutrinos do, thus determining through analysis that the air shower was from a particle from below ground level helps isolate the effects of neutrinos. The set-up aims to detect neutrinos with kinetic energy in the range of 1 to 10 PeV.

A similar neutrino observatory plan is TAMBO.