This is a simple book on a difficult subject which encourages further learning. A comprehensive but easy to follow textboook for radiography students. The new edition has been thoroughly revised and improved to bring it up-to-date for today's student. The physics included reflects current practice in diagnostic imaging, and sections on radiation protection have been updated in line with current legislation. Features: * a new edition of a very popular text for radiography students and others who need a working knowledge of radiological physics * updated throughout in line with current practice and new legislation on safety