Cherenkov radiation refers to the photon emission from the swift charged particle moves with the velocity greater than the phase velocity of light in the surrounding materials. Ever since its ...

An array of photomultiplier tubes, used to detect faint sources of light, mounted inside the steel tank of the Eos detector. The photomultiplier tubes will eventually be submerged in water admixed ...

LOS ALAMOS, N.M., August 21, 2013—The High-Altitude Water Cherenkov (HAWC) Gamma Ray Observatory has begun formal operations at its site in Mexico. HAWC is designed to study the origin of very ...

Cherenkov light appears when a charged particle travels through matter faster than light can. This effect is the optical equivalent of a sonic boom, which occurs, for example, when a jet travels ...