This book consist : Chapter 1. Introduction; Chater 2. Framework; Chapter 3. Dosimetric quantities and units; Chapter 4. Dosimetry formalism; Chapter 5. Selection of instrumentation; Chapter 6. Establishment of a diagnostic SSDL calibration facility; Chapter 7. Code of practice for diagnostic calibrations at SSDLs; and Chapter 8. Code of practice for clinical measurements. (Jml)