Abstract: Based on the irradiation and measuring hardware and software specified for the DMC2000S type X and Gamma electronic personal dosimeter, a calibration apparatus was established and used to calibrate the DMC2000S electronic dosimeters as an on-site reference calibration standard. Applying the standard measuring instrument transfer method, the calibration standard achieved the unit traceability via calibration. With the measurement range of 10 μSv—100 mSv, and the expanded uncertainty of 9.2% (k=2), the calibration apparatus satisfied the usage requirements as well as the calibration requirements stipulated by the regulation of JJG 1009—2006 “Direct reading X and Gamma personal dose equivalent (rate) monitor”.

Key words: electronic personal dosimeter, calibration standard, DMC2000S, calibration