The term "alpha X-ray" refers to a specific type of radiation that is emitted from atoms with unstable nuclei. It is often used in the context of nuclear physics and is commonly associated with the decay of radioactive materials. Synonyms for "alpha X-ray" include alpha radiation, alpha particles, and alpha rays. These terms all describe the same phenomenon, which involves the emission of high-energy particles from the nucleus of an atom. While alpha X-rays can be harmful to living organisms in large doses, they are also useful in a variety of scientific and medical applications.