Risk Tree Analysis in Criticality Control

Robert Nertney, John Morfltt (EG G Idaho), invited 

The application of fault tree analysis to nuclear criticality control was discussed in an invited paper of that name by one of the present authors at the 1977 Winter Meeting of the American Nuclear Society. The present tutorial session expands this material into a full special session. 

The material presented in the sessipii will be aimed at those who have had little or no previous experience with the Management Oversite and Risk Tree (MORT). The session will emphasize the usefulness and wide applicability of the MORT system rather than concentration on specialized techniques. 

In its broadest sense, MORT is a formal disciplined logic that systematically relates and Integrates a wide variety of safety concepts. The effectiveness of the MORT system, with over eight years of deveiopment and test behind it, has been verified in actual field trials. Its use is now mandatory within the U.S Department of Energy for the more severe classes of accidents. 

Would induce, at an early stage in their career, those mental attitudes and disciplines prerequisite to effective performance. 

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