1. International Organization for Standardization: ‘X and gamma reference radiation for calibrating dose meters and dose rate meters and for determining their response as a function of photon energy. Part 1: Radiation characteristics and production methods’ ISO4037‐1 1996
2. International Organization for Standardization: ‘X and gamma reference radiation for calibrating dose meters and dose rate meters and for determining their response as a function of photon energy. Part 2: Dosimetry for radiation protection over the energy ranges from 8 keV to 1.3 and 4 MeV to 9 MeV’ ISO4037‐2 1997
3. International Organization for Standardization: ‘X and gamma reference radiation for calibrating dose meters and dose rate meters and for determining their response as a function of photon energy. Part 3: Calibration of area and personal dose meters and the measurement of their response as a function of energy and angle of incidence’ ISO4037‐3 1999
4. International Organization for Standardization: ‘X and gamma reference radiation for calibrating dose meters and dose rate meters and for determining their response as a function of photon energy. Part 4: Calibration of area and personal dose meters in low energy X reference radiation fields’ ISO4037‐4 2004
5. Establishment of filtered X‐ray reference radiation based on ISO4037‐1:1996 in CIRP;Zhang Q.L.;J. Nucl. Sci. Technol.,2008