A student textbook which examines the broad principles of providing radiotherapy treatment. The main author (Griffiths) is internationally reputed for her work on quality control in the delivery of radiotherapy treatment. Following the recent well publicised incidents of inaccurate dosages being given to patients, and poor monitoring leading to failure to recognise the errors, quality control has become the main area of concern for radiotherapy Key Features: Covers the principles and issues of concern to those providing radiotherapy treatment delivery, dosage calculations, treatment planning, quality assurance; Links relevant theory from physics and oncology with daily technical practice as seen in radiotherapy department; Includes descriptions of and use of radiotherapy machines and equipment in current use; Ideal companion volume to Walter & Miller's Short Textbook of Radiotherapy. With Wilks: Principles of Radiological Physics these three texts provide a complete package of texts for radiotherapy students.