This chapter focuses on detectors, which together with accelerators are some of the tools scientists use to explore matters smallest components.

Detectors show events that cannot be detected with human senses. The purpose of detectors in particle physics is to determine the trajectories, scattering angles, energy and identity of the produced particles.

Goal: the purpose of this chapter ion is to explain the functioning of detectors, so that your understanding of how the research results in WIRED - the interactive program for analysing pictures of particle collisions - should be interpreted.