Superconducting cavities are specialized structures used in particle accelerators to boost the energy of charged particles, such as electrons and protons. These cavities are made from superconducting materials, which can conduct electricity without resistance when cooled to very low temperatures. This property allows them to efficiently accelerate particles with minimal energy loss. In a superconducting cavity, an alternating electromagnetic field is created, which interacts with the particles as they pass through. This interaction increases the particles' speed and energy, making superconducting cavities essential components in advanced research facilities like the Large Hadron Collider and Jefferson Lab.