Particle accelerators

Particle accelerators are machines that use electromagnetic fields to propel charged particles (typically electrons, protons, or ions) to extremely high speeds, then smash them together or into stationary targets. These collisions reveal the fundamental structure of matter and test theories about how the universe works.

The most famous is the Large Hadron Collider near Geneva, a 27-kilometer ring where protons collide at nearly light speed. But accelerators range from tabletop devices in hospitals—used for radiation therapy and medical imaging—to massive underground facilities devoted to pure research.

When particles collide, their kinetic energy transforms into mass, briefly creating exotic particles that decay almost instantly. By studying these fleeting products, physicists probe the Standard Model and search for phenomena beyond it. Accelerators have discovered the electron, positron, and the Higgs boson, reshaping our grasp of matter and forces.

Modern accelerators blend experimental genius with cutting-edge computing and engineering. They require international collaboration, enormous budgets, and ingenious solutions to manage the intense energies and radiation involved.

Related

Physics, Quantum mechanics, CERN, Subatomic particles, High-energy physics