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This Safety Guide provides specific recommendations on protection against internal and external hazards in the operation of nuclear power plants. It provides new or updated recommendations derived from enhanced understanding of operational aspects of hazards and combinations of hazards. Operating experience gained from incidents and accidents in nuclear power plants around the world has demonstrated that fire can be an important risk contributor in many Member States. However, there are other internal and external hazards that have also to be considered in the design and operation of nuclear power plants. This Safety Guide supersedes and expands the scope of lAEA Safety Standards Series No. NS- G-2. 1, Fire Safety in the Operation of Nuclear Power Plants, to include recommendations on these other hazards.
This publication documents the results of an IAEA coordinated research project (CRP)on the application of computational fluid dynamics (CFD) codes for nuclear power plant design. The main objective was to benchmark CFD codes, model options and methods against CFD experimental data under single phase flow conditions. This publication summarizes the current capabilities and applications of CFD codes, and their present qualification level, with respect to nuclear power plant design requirements. It is not intended to be comprehensive, focusing instead on international experience in the practical application of these tools in designing nuclear power plant components and systems. The guidance in this publication is based on inputs provided by international nuclear industry experts directly involved in nuclear power plant design issues, CFD applications, and in related experimentation and validation highlighted during the CRP.
Security management for radioactive material in use, storage and associated facilities includes the establishment and implementation of policies, plans, procedures and processes for the security of radioactive material. Security management assists to ensure that the security systems are effective, reliably operated and maintained with the necessary resources. Based on extensive input from technical and legal experts, this publication sets forth security management as an essential tool to verify that personnel, procedures and equipment operate interdependently and in an integrated manner, and that the leadership and personnel responsible for security demonstrate the highest commitment towards promoting a robust nuclear security culture within the organization. This Technical Guidance references and takes into account other IAEA Nuclear Security Series publications that provide guidance relating to security management. The document further provides guidance, including on the development of a security plan for radioactive material in use and in storage and for associated facilities. The Security Plan is an essential component of an operators licensing submission package. This Technical Guidance takes into account other IAEA Nuclear Security Series publications that provide guidance relating to security management and relating to security plans.
The IAEA organizes International Collaborative Standard Problems (ICSPs) to facilitate co-operation on advancing reactor technology related activities. These activities include the development, assessment and validation of computer codes for design and safety analysis of nuclear power plants. The objective of this ICSP was to develop and facilitate open access to a set of standardized numerical test problems for selected postulated transients in pressurized heavy water reactors (PHWRs). These manufactured test problems are different from typical benchmark problems in that the specification is designed for a stylized model of a generic CANDU-6 PHWR and a reference solution is not postulated. The set of standardized numerical test problems supports the development of simulation codes, methods, and coupling frameworks. This publication provides a description of four numerical test problems, the participants' individual multi-physics methodologies applied, and simulations carried out, an independent synthesis of the results, and the lessons learned from the exercise.
The design, operation, safety and decommissioning of research reactors involves complex processes that can be understood and improved through numerical analysis and benchmarking. This publication provides the final consolidated results of an IAEA coordinated research project (CRP). It comprises the benchmark studies, details of the calculations in the annexes and individual reports of the CRP participants in the on-line supplementary files. This publication is intended for operating organizations, researchers, regulatory bodies, reactor designers, technical support organizations and other parties interested in benchmarking the computer codes and models they use for research reactor operation and safety analysis.
Cancer centres are a major resource in ensuring a comprehensive approach to cancer treatment and its planning. As part of a new roadmap developed by WHO and IAEA to help countries design national cancer control programmes, this publication proposes a framework to develop a cancer centre and/or to strengthen the provision of services in an existing cancer centre. The publication provides the features of multidisciplinary cancer care and details the infrastructure, human resources and equipment for different services. This framework is expected to be used as a guide to implementation, taking into consideration the local context and resources.
This publication has been produced as part of the IAEA's Modelling and Data for Radiological Impact Assessments (MODARIA) programme.
The response of a nuclear installation's structure during an earthquake depends on the characteristics of the ground motion, the surrounding soil and the structure itself.
This publication describes the practices and challenges related to risk aggregation for various hazards, various operational states, and considering all sources of potential radioactive releases at a nuclear installation site. It provides a methodology and technical basis for risk aggregation and describes the good practices and practical examples of risk aggregation developed by IAEA Member States. The description of practices is supplemented by the detailed discussion on risk communication and use of aggregated risk results to support decision making processes
Engaging with stakeholders is an essential part of any complete nuclear programme. Involving stakeholders in decision making processes, even those stakeholder groups that do not have a direct role in making those decisions, can enhance public confidence in the application of nuclear science and technology and strengthen communication among the key organizations in a nuclear programme. This publication provides theoretical and practical guidance on the development and implementation of stakeholder engagement programmes and activities. The key principles of stakeholder engagement are identified in it. It also includes tools such as templates to help establish a stakeholder engagement programme and identify associated activities, including tools for stakeholder analysis. The guidance provided can be further developed and adjusted to each specific type of facility, moment in its life cycle, and/or the group of stakeholders with which to engage. The publication demonstrates the importance of stakeholder engagement throughout the life cycle of all nuclear facilities, including operating and new reactors, all aspects of the nuclear fuel cycle, from uranium mining to spent fuel and radioactive waste management, decommissioning, and non-power applications.
In recent years there has been an evolution in numerical models used to compute tsunami propagation and run-up. Many models currently available offer a wide array of choices to the users. In parallel with the development of such numerical models, it is important that the user only applies the verified and validated numerical models that have undergone a benchmark analysis. This publication provides information and benchmark problems to enable engineers and regulators to select the most appropriate tsunami analysis software and modelling for the evaluation of tsunami hazards for nuclear installations to ensure their safety against those events. In addition, the benchmark problems will enable such users to become familiar with the limitations of the tsunami analysis modelling available in research and commercial software.
Equipment Qualificiation for Nuclear Installations: IAEA Safety Standards Series No SSG-69
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