OECD (Organization for Economic Co-Operation and Development) Criticality Calculations Working Group Report: The Need for Critical Experiments Data

摘要

Representatives from eleven member countries of the Organization for Economic Co-operation and Development (OECD) participated in an exercise to validate computer calculations designed to evaluate the criticality safety for several fissile material transport and handling situations. A procedure evolved from this work which has been shown to demonstrate whether a given computation method produces ''valid'' results. This procedure is expected to provide a basis for acceptance of computational results on an international basis by regulatory authorities through the comparison of methods used by the various countries. Even though not an initial topic for the Working Group, the study demonstrates the need for additional critical experiments. This paper examines each study and identifies experiments that could (1) provide useful extensions to the validation and (in the case of the current study) (2) identify a need which is essential for a rigorous validation of systems in which fissile material in solid form is surrounded by fissile material in solution. (ERA citation 12:045087)