Radiation dosimetry : x rays and gamma rays with maximum photon energies between 0.6 and 50 MeV. - Washington ICRU 1969 - vi, 30 p. 28 cm. - ICRU 14. International Commission on Radiation Units and Measurements 14. . Includes index. Subjects--Topical Terms: CalibrationDosimetersRadiationRadiation dosimetry.Radiation measurement Dewey Class. No.: 539.77 INT 1969