The status of Cherenkov detectors in astroparticle physics

The Cherenkov detectors used in astroparticle physics are found in the most varied of environments. Used for the detection of charged cosmic rays, γ-rays and neutrinos, these detectors can be found on land, suspended beneath high-altitude balloons, orbiting in space, or implanted at great depth under land, in the oceans or southern polar ice. Stereoscopic imaging air Cherenkov telescope arrays are used in the study of high-energy γ-rays on several continents. The largest detector arrays in existence use thousands of photomultiplier tubes to record the arrival of the Cherenkov light from neutrinos or from secondary particles created in extensive air showers. Representatives from this rich catalog of innovation are outlined.