A beta radiator is also known as a beta emitter or beta source. It is a type of radioactive material that emits beta particles, which are fast-moving electrons. Other synonyms for beta radiators include beta radiation sources, beta emitters, and beta isotopes. Some specific elements that act as beta radiators include carbon-14, potassium-40, and strontium-90. These radioactive materials are commonly used in medical applications, such as tumor therapy, as well as industrial and scientific applications, like nuclear energy production and radiography. Regardless of the term used, it is important to handle beta radiators with extreme caution due to their radioactive nature.