scope:

The objective of this Safety Guide is to provide recommendations on meeting the requirements on the safety related aspects of the utilization and modification of research reactors, such that these projects can be implemented without undue radiation risks to the site personnel, the public or the environment. The present Safety Guide develops the general concepts in these areas, which are presented in paras 7.85-7.92 of Ref. [2] relating to utilization and modification. Therefore, this Safety Guide should be read in conjunction with Ref. [2].

This Safety Guide provides recommendations to the operating organization, including external users of the research reactor (i.e. experimenters), technical support organizations and other persons involved in utilization and modification projects. It provides recommendations only on the safety implications of the utilization and modification of research reactors. The reason for presenting the areas of utilization and modification together in a single volume is to avoid duplication, since most experiment and modification projects have similar treatments in common areas, such as categorization, safety review and assessment, project implementation and commissioning.