This book provides a comprehensive and current review of selected radiotherapy treatment units. Not only will it be invaluable to undergraduates but also to qualified staff who have not had the opportunity to study the academic principles behind the dramatic advances in radiotherapy equipment in recent years. Each chapter contains the basic physical principles associated with each piece of equipment, building upon these ideas to examine the structure, function and applications of the machine in question. Critical evaluation of each piece of equipment is included to allow the undergraduate student to begin to develop such skills, and learning points incorporated through each chapter encourage the student to apply this fundamental learning to their own specific and unique clinical environment.