Radiofrequency cavities are specialized structures used in particle accelerators, such as those found in CERN or SLAC. They are designed to generate electromagnetic fields that accelerate charged particles, like electrons or protons, to high speeds. The cavities are typically made of conductive materials and resonate at specific frequencies to efficiently transfer energy to the particles. These cavities play a crucial role in various scientific applications, including nuclear physics and medical therapies. By controlling the frequency and shape of the electromagnetic fields, researchers can optimize the acceleration process, leading to advancements in both fundamental research and practical technologies.