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Professors Nahee Park and Ken Clark are involved in part of a global experiment that will use the Pacific Ocean to capture and study Cherenkov radiation from neutrinos.

Excerpt from the Queen's Gazette article Deep-sea detector to unlock cosmic mysteries:

Neutrinos are nearly impossible to catch, but when one collides with a water molecule it produces a faint blue glow called Cherenkov radiation. To detect that glow, scientists will deploy vertical strings studded with glass spheres, each holding a light-sensitive photomultiplier tube. Anchored to the seafloor and held upright by buoys, these strings form a towering underwater array. Together they turn a cubic kilometre of seawater into a neutrino detector.

These signals allow us to reconstruct where a neutrino came from and how much energy it carried. It's like catching a message straight from the most extreme places in the universe.
–Prof. Nahee Park

Water is an ideal medium because it lets the light from Cherenkov radiation travel across the huge distances we need. By placing detectors far below the surface, we can reduce background noise and focus on signals from neutrinos themselves.
-Prof. Ken Clark

Read the full article