In 3-4 sentences, describe how a particle accelerator works and give an example of the applications of the discoveries made with them. (4 points )

A particle accelerator works by using electromagnetic fields to accelerate charged particles to high speeds, allowing scientists to study the particles and their interactions. One example of an application of discoveries made with particle accelerators is in the field of medical imaging. Techniques such as positron emission tomography (PET) scans rely on knowledge gained from particle accelerator experiments to produce detailed images of the body's internal structures.