放射卫生学重点 第三章 放射防护标准.ppt

* * THE END * * INTERNATIONAL COMMISSION ON RADIOLOGICAL PROTECTION —————————————————————————————————————— ? The ICRP Publication 26 System Prevent deterministic, minimise stochastic harm Justification by Cost-Effectiveness Analysis More good than harm to society OPTIMIZATION by Cost-Benefit Analysis ALARA; maximise net collective benefit Dose limits ‘How much does it cost; how many lives are saved?’ INTERNATIONAL COMMISSION ON RADIOLOGICAL PROTECTION —————————————————————————————————————— ? The ICRP Publication 60 System Prevent deterministic, minimise stochastic harm Justification Optimization: CBA other means ‘Constrained by restrictions on the doses to individuals (Dose Constraints) … so as to limit the inequity likely to result from the inherent economic and social judgements’ Dose and risk limits INTERNATIONAL COMMISSION ON RADIOLOGICAL PROTECTION —————————————————————————————————————— ? Published Recommendations Since 1990 Publ. no. Title 62 63 …protection in biomedical research …protection of the public in a radiological emergency 64 …potential exposure: a conceptual framework 65 Protection against Radon-222… 68 Dose coefficients for … workers 75 General principles for radiation protection of workers 76 77 …potential exposure: …selected radiation sources …policy for the disposal of radioactive waste 81 …disposal of long-lived solid radioactive waste 82 Protection of the public in … prolonged radiation exposure INTERNATIONAL COMMISSION ON RADIOLOGICAL PROTECTION —————————————————————————————————————— ? Components of The 2005 System: The Basic Recommendations… INTERNATIONAL COMMISSION ON RADIOLOGICAL PROTECTION —————————————————————————————————————— ? Features, draft 2005 Recommendations Quantities in radiological protection Biological aspects General system of protection ‘Quantitative reco