Refinement of Technique for Monitoring Radiation Safety of X-Ray Diagnostic Apparatuses

摘要

Sanitation regulations SanPiN 2.6.1.1192-03 "Hygienic Requirements for Structure and Use of X-Ray Departments, Apparatuses, and X-Ray Examination" determine radiation monitoring of X-ray apparatuses. According to Table 4.2 of SanPiN, allowable dose power (ADP) in the workplace of group A personnel is 13 nGy/h.According to SanPiN (Appendix 11), ADP in the workplace of personnel should be regularly monitored. Measured ADP value is normalized to standard working radiation load of the X-ray apparatus (Table 4.1):D_n = D_u W/(1800 I_u(1)where D_n is dose power normalized to standard working radiation load of the X-ray apparatus, muGy/h; D_u is measured dose power under given conditions, uGy/h; W is working radiation load (Table 4.1), (mA-min)/week; 1800 is group A personnel working time, min/week; /? is anode current during measurement, mA. Eq. (1) is taken from SanPiN (Eq. from appendix 1, p. 12).