Efficiency calibration of Si(Li) and HpGe detectors in the energy range of 5–60 keV

A method is described for the efficiency calibration of Si(Li) and HpGe detectors in the 5–60 keV energy region. The method utilizes theK x-ray lines from⁵⁴Mn,⁶⁵Zn,⁷⁵Se,⁸⁵Sr,⁸⁸Y,¹⁰⁹Cd,¹³⁷Cs,¹⁴¹Ce and¹⁵⁹Dy in addition to⁵⁷Co and²⁴¹Am radioactive sources to have sufficient number of data points. Since the emission intensities are required at variousK x-ray energies from the decay of these sources, this paper reports theK x-ray emission intensities per 100 disintegrations for these nuclei using the latest adopted data for gamma ray intensities, electron capture and internal conversion coefficients, fluorescence yield values and the relative intensities of the fourK x-ray lines.