1. situ Ge(Li) and Nal(TI) gamma-ray spectrometry;Beck,1972
2. MCNP-A general Monte Carlo N-particle transport code;Briesmeister;Los Alamos National Laboratory Report LA-12625-M,1993
3. A guide to the measurement of environmental gamma radiation;Gibson,1993
4. Photon mass attenuation and energy-absorption coefficients from 1 keV to 20 MeV;Hubbell;Int. J. Appl. Radiat. Isot.,1982
5. Radionuclide transformations;ICRP (International Commission on Radiological Protection),1983