This book provides comprehensive and easy-to-follow coverage of the principles and application of physics for both diagnostic and therapeutic radiography students. Regardless of changes in technology and clinical grading, the most important role of the radiographer remains unchanged - ensuring the production of high quality images and optimal treatment. These should be performed with the minimum of radiation hazard to the patient, the radiographers themselves and others whose presence is a necessary part of the examination or treatment. An understanding of physics and the basics of radiographic technology is essential to do this effectively. The book covers all the physics and mathematics required by undergraduate diagnostic and therapeutic radiography students studying for a BSc (Hons), catering for those who do not have A-level mathematics as well as for those who do.