cosmic-ray shower

cosmic-ray shower

[′käz·mik ‚rā ′shau̇·ər]
(nuclear physics)
The simultaneous appearance of a number of downward-directed ionizing particles, with or without accompanying photons, caused by a single cosmic ray. Also known as air shower; shower.
References in periodicals archive ?
At Los Alamos National Laboratory, fiberglass cones await the arrival of particles from a cosmic-ray shower.
Throughout the 1930s and 1940s, scores of young physicists scaled mountaintops in an effort to record ever higher energy cosmic-ray showers striking Earth.
Our planet acts as a filter to screen unwanted background noise, particularly from neutrinos created in cosmic-ray showers in the atmosphere near the North Pole.
In addition to greater sensitivity, this array would benefit from improved shielding against spurious signals from overhead cosmic-ray showers.