The Basis for Radiation Protection. The Production of X-Radiation. Ionizing Radiation. Interactions of Radiation with Matter. Cellular Biology and History of Radiobiology. Principles of Radiobiology. Early Effects of Radiation. Late Effects of Radiation. Radiation Safety/Protection and Health Physics. Protecting the Radiographer and Other Workers. Protecting the Patient in Radiography. Radiation Protection in Nuclear Medicine. Applying Radiobiology and Protection to Radiation Therapy. Patient Education. Appendix A: Commonly Used Formulas. Appendix B: A Guide to Radiation Protection Resources on the Internet. Appendix C: The Greek Alphabet. Index.