Intended as a reference handbook of quantities used in dosimetry of ionizing radiations. Fields of application are radiological protection, environmental radiation, health physics, nuclear medicine and radiotherapy, radiobiology, radiopharmacy and radiation chemistry. The book is in three parts. The first part deals with electrons, X-rays and gamma-rays. The second part contains data for heavy charged particles ranging from protons to uranium ions, and the final part is concerned with neutrons. Quantities tabulated include quality paramenters recommended by the International Commissions of Radiological Protection and of radiation quantities units and measurements.