1. Bearden, J. A. (1964). X-ray Wavelengths. USAEC Rept. NYO-10586.
2. The scintillation method;Bell,1955
3. Response function of NaI(Tl) scintillation counters;Berger;Rev. Sci. Instr.,1956
4. Tables of energy losses and ranges of electrons and positrons;Berger;NASA (Natl. Aeron. Space Admin.),1964
5. The X- or gamma-ray energy absorption or transfer coefficient: Tabulations and discussion;Berger;Radiation Res.,1961