This passage provides an overview of a book that serves as an introduction to atomic medicine, covering a wide range of information on radioisotopes used in medical research, diagnosis, and therapy. It briefly describes the use of high-energy particle accelerators in medical settings, with a focus on linear accelerators for radiotherapy. The book also discusses the three major biological effects of radiation on humans: immediate tissue damage, long-term chronic damage, and genetic damage. It lists common levels of radiation exposure in Great Britain and emphasizes the importance of understanding genetic damage caused by radiation. The material is based on British sources and is recommended for medical professionals seeking an up-to-date understanding of atomic medicine.This passage provides an overview of a book that serves as an introduction to atomic medicine, covering a wide range of information on radioisotopes used in medical research, diagnosis, and therapy. It briefly describes the use of high-energy particle accelerators in medical settings, with a focus on linear accelerators for radiotherapy. The book also discusses the three major biological effects of radiation on humans: immediate tissue damage, long-term chronic damage, and genetic damage. It lists common levels of radiation exposure in Great Britain and emphasizes the importance of understanding genetic damage caused by radiation. The material is based on British sources and is recommended for medical professionals seeking an up-to-date understanding of atomic medicine.