"Version: 20160501"--Title page verso.Includes bibliographical references.Preface -- 1. The basics of x-rays -- 1.1. What are x-rays? -- 1.2. Characteristics and properties of x-rays -- 1.3. Substances and x-rays -- 1.4. The effect of x-rays on radiographic film2. Radiographic quality -- 2.1. Properties of radiographic quality -- 2.2. Quality control factors -- 2.3. Density and current -- 2.4. …