医事放射师为在医疗院所中从事专业辐射相关诊疗业务的医事人员。

2000年1月14日立法院通过医事放射师法，根据该法第一条规定：中华民国国民经医事放射师考试及格，并依本法领有医事放射师证书者，得充任医事放 射师。中华民国国民于本法公布施行前，经医用放射线技术师考试或检核及格者，得依该法请领医事放射师证书，充任医事放射师。

Radiographers, also known as Radiologic Technologists, Diagnostic Radiographers, Medical Radiation Technologists are Healthcare Professionals who specialise in the imaging of human anatomy for the diagnosis and treatment of pathology. Radiographers are infrequently, and almost always erroneously, known as X-Ray Technicians. In countries which use the title radiologic technologist they are often informally referred to as techs in the clinical environment; this phrase has emerged in popular culture such as television programmes.