Particle detectors are devices used to measure and identify subatomic particles such as electrons, protons, and neutrons. They are commonly used in high-energy physics experiments to study fundamental particles and their interactions. Particle detectors come in various forms, ranging from simple Geiger counters to sophisticated systems like bubble chambers and calorimeters. These detectors play a crucial role in advancing our understanding of the building blocks of the universe and the forces that govern their behavior.