DS397 Saf Use Mod RRs with NUSSC comments 18-06-2010

asic requirements when dealing with certain specific topics, such as utilization andmodification of research reactors.1.4. The organizations involved in ensuring the safety of research reactors and protectionof the public, site personnel and the environment have a number of responsibilities which areinterrelated. Most important are the preparation of the safety analysis and the safety analysisreport by the operating organization and its review and assessment by the regulatory body, aswell as the production and evaluation of safety related documents during the initial licensingprocess, periodic licensing renewals or other occasions, such as a periodic safety review ormajor modification(s) of the research reactor. The information on safety analysis and relateddocumentation in Ref. [4] and on the review and assessment by the regulatory body in Ref.[5] has been taken into account in the preparation of the present Safety Guide. In addition, thepresent Safety Guide discusses other aspects of experiments and modifications, such ascommissioning and radiation protection provisions, for which detailed guidance is provided inRefs [6] and [7]. The IAEA Safety Glossary [8] defines and explains the safety related wordsand terms used in the present publication.OBJECTIVE1.5. The objective of this publication is to provide practical guidance on meeting therequirements on the safety related aspects of the utilization and modification of researchreactors such that these projects can be implemented without undue risks to site personnel, thepublic and the environment. The present Safety Guide develops the general concepts in theseareas, which are presented in the paragraphs related to utilization and modification in theSafety Requirements for Research Reactors [2]. Therefore, this Safety Guide should be readin conjunction with Ref. [2].1.6. This Safety Guide gives guidance to the operating organization, includingexperimenters and technical support organizations and other persons involved in utilizationand modification projects. It provides guidance only on the safety implications of researchreactor utilization and modification. The reason for presenting the areas of utilization andmodification, together in a single volume is to avoid duplication, since most experiment andmodification projects have similar treatments in common areas, such as categorization, safetyreview and assessment, project implementation and commissioning.2