A photomultiplier tube is a device used to measure very low levels of light. It’s a common tool of particle physics when trying to detect just a few photons. It turns out that running a tube at ...

Previously, observations from ground-based experiments at very-high-energy band were scarce. LHAASO, located at an altitude of 4,410 meters on Mount Haizi in Daocheng county, Southwest China's ...

A vacuum tube that converts light into electrical energy and amplifies it. Photomultiplier tubes are used in high-end drum scanners, because they are more sensitive to light than the CCD elements ...