All radiologists need a thorough understanding of the principles of physics underlying the equipment the use. Radiodiagnosis embraces a range of equipment using ever more sophisticated physical properties. Increasing emphasis is being placed on physics in all postgraduate examinations in radiology. This book provides in a concise and comprehensive format the principles of physics necessary for an understanding of modern radiodiagnosis. It is an examination oriented book intended for all studying for postgraduate examinations in radiodiagnosis.