yorrick

How can these groups of particles be detected? We speak mostly about muons, the elementary particles that are energetic enough to travel through water, soil and other materials, but eventually are stopped. During their passage through matter the energy they carry is deposited in the surrounding medium. If they traverse a smart-phone photo-sensor, then a kind of an image is produced which with some expertise/algorithm can be interpreted as a particle hit. This is what we call a “catch”.