1. HPGe detector photopeak efficiency calculation including self-absorption and coincidence corrections for Marinelli beaker sources using compact analytical expressions;Abbas;Appl. Radiat. Isot.,2001
2. ANSI N42.14-1999. American National Standard for Calibration and Use of Germanium Spectrometers for the Measurement of Gamma-ray Emission Rates of Radionuclides.
3. Calibration of Ge(Li) gamma-ray spectrometers for the measurement of radioactive noble gases;Coursey;Int. J. Appl. Radiat. Isot.,1977
4. ENSDF Nuclear Data Sheets, 〈http://www.nndc.bnl.gov/ensdf/index.jsp〉, 〈http://www.nndc.bnl.gov/nudat2/indx_dec.jsp〉. IAEA Nuclear Data, 〈http://iaeand.iaea.or.at/〉. 〈http://www.nndc.bnl.gov/〉.
5. Hamzawy, A., 2004. Accurate direct mathematical determination of the efficiencies of gamma detectors arising from radioactive sources of different shapes. Ph.D. Thesis. Alexandria University, Egypt.