This leading reference source devoted to radiation therapy physics is now in its Third Edition. Pertinent to the entire radiation oncology team, it is clinically oriented and presents practical aspects as well as underlying theory to clarify basic concepts. Contains an expanded focus with seven new chapters on special procedures. Remaining chapters have been revised to detail any new developments in the field over the past eight years. Illustrations are overhauled to reflect current practice and to detail the new procedures added. Provides a solid foundation for residents and a strong review for practitioners.