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.

A number of IAEA Member States generate relatively small quantities of radioactive waste and/or disused sealed sources in research or in the application of nuclear techniques in medicine and industry. This publication presents a modular approach to the design of waste processing and storage facilities to address the needs of such Member States with a cost effective and flexible solution that allows easy adjustment to changing needs in terms of capacity and variety of waste streams. The key feature of the publication is the provision of practical guidance to enable the users to determine their waste processing and storage requirements, specify those requirements to allow the procurement of the appropriate processing and storage modules and install and eventually operate those modules.

This Safety Guide provides recommendations on how to meet the applicable safety requirements in relation to the design aspects of new nuclear installations subjected to seismic hazard. These recommendations focus on the consistent application of methods and procedures, in accordance with best practice, for seismic analysis, design, testing and qualification of structures, systems and components. New recommendations include applications of seismic isolation systems, the seismic margin to be achieved by the design and application of the graded approach. This Safety Guide is intended for use by organizations involved in the seismic design of nuclear installations, in analysis, verification and review, and in the provision of technical support, as well as by regulatory bodies.

This book documents a special collection of articles from a select group of invited prominent scientists from academia, national laboratories and industry who presented their work at the symposia on Environmental and Energy Issues at the 2008 Materials Science and Technology (MS&T'08) conference held in Pittsburgh, PA. These articles represent a summary of the presentations focusing on topics in nuclear, environmental, and green engineering were held, including a discussion of Waste Glass Leach Testing and Modeling.

This publication provides guidance to States and their competent authorities on how to implement and maintain a physical protection regime for transport of nuclear material. It will also be useful to shippers or carriers in the design and implementation of their physical protection systems. The publication builds upon IAEA Nuclear Security Series No. 13, Nuclear Security Recommendations on Physical Protection of Nuclear Material and Nuclear Facilities (INFCIRC/225/Revision 5), and provides additional guidance on how to implement these recommendations in practice.

This Safety Guide provides recommendations on the establishment of an appropriate regulatory framework for the management of naturally occurring radioactive material (NORM) residues in an integrated manner and using a graded approach. It also elaborates on roles and responsibilities, options for management of NORM residues, long term safety of NORM residues, and exemption and clearance. The publication is targeted at regulatory bodies, operating organizations, technical support organizations and other parties who are interested and involved in management of NORM residues.

This publication was produced as part of the Working Group 4 of the IAEA Modelling and Data for Radiological Impact Assessments (MODARIA) programme, which focused on the analysis of radioecological data in IAEA Technical Reports Series publications to identify key radionuclides and associated parameter values for human and wildlife exposure assessment. The intent is to reduce uncertainties and to develop new approaches to strengthen the evaluation of the radiological impact to the public, as well as to flora and fauna, arising from radionuclides in the environment. The publication comprises two main sections. The first one considers prioritization approaches to identify the radionuclides and pathways that potentially contribute most to internal and external exposure to organisms in wildlife groups for different sources and exposure situations. The focus of the second section is the improvement of transfer parameter values for animal product data, namely cow and goat milk. Milk was selected as it often has a high priority in radiological environmental impact assessment. Examples of approaches that can be used to identify potentially important data gaps, illustrated using case studies are also presented. This publication is intended to provide Member States with technical information and data that can be used by their national authorities to develop and improve their models and approaches for radiological environmental impact assessment for facilities and activities.

IAEA Member States have expressed relevant interest in the development and deployment of small and medium-sized or modular reactors (SMRs) to help cover their energy needs in the coming decades. SMR designs may include technological characteristics that differ significantly from those of the large nuclear power plants that are commercially available. Those SMR characteristics can represent a challenge when the existing design requirements, as established in IAEA Safety Standards Series No. SSR-2/1 (Rev. 1) Safety of Nuclear Power Plants: Design, are intended to be applied to SMRs. This publication focuses on the engineering judgement necessary to apply each of the design requirements in SSR-2/1 (Rev. 1), and also the entire set of requirements, to light water cooled and high temperature gas cooled SMRs. The publication includes the common ground reached by representatives from regulatory bodies, technical and scientific support organizations (TSOs) and SMR design organizations regarding the applicability of the design requirements to both SMR technologies. The insights provided are also intended to contribute to motivating further progress in the harmonization of national and international views on safety approaches for SMR technologies. This publication is intended for use by organizations dealing with nuclear power plant design or operation, and by regulatory bodies and TSOs, particularly from countries that are initiating or enlarging nuclear power programmes that include SMR units.

There are several hundred thousand nuclear gauges incorporating a radioactive source or a radiation generator in use all over the world. They have been used in a wide range of industries to improve the quality of products, optimize processes, and save energy and materials. The economic benefits have been amply demonstrated, and there is clear evidence that nuclear gauge technology can be used safely and will continue to play an important role. Although generic guidance for source handling is available, there have been no targeted recommendations for radiation safety in the use of nuclear gauges. To fill this gap the current publication provides practical guidance for implementing the safety requirements specified in IAEA Safety Standards Series No. GSR Part 3, Radiation Protection and Safety of Radiation Sources: International Basic Safety Standards, related to the use of nuclear gauges

Industrial computed tomography for advanced industrial non-destructive evaluation is a complex technological area, encompassing nuclear radiation detectors, mechanical engineering, computational mathematics and radiation physics. Additionally, the cost of applying this technology may be prohibitive. This guidebook provides an introduction to gamma computed tomography for non-destructive evaluation imaging in the simplest configuration. It is intended to be of use to the non-destructive testing community, currently practicing conventional radiography techniques. It provides clear information on the relevant practical issues and problems related to setting up computed tomography for industrial non-destructive testing and establishes a basis for understanding the intricacies of the technology

The design and operational requirements of nuclear facilities, such as nuclear power plants (NPPs), are specified and managed to ensure the safety and optimized operation of the facility. These requirements and how they are managed, interpreted and used to support facility functions and activities, are very important in all the life cycle phases of the facility from design through construction, commissioning, operation, and from refurbishment to decommissioning. This publication analyses and provides new insights into the different approaches followed by the nuclear industry for their effective management as well as guidance to develop a comprehensive requirement management programme in nuclear facilities. Although the guidance provided is based on industry experience to develop such programmes for NPPs, the principles and approaches provided can be used in all nuclear facilities including research reactors, fuel manufacturing facilities, fuel reprocessing and waste management facilities.

Reliable methods for estimating the cost of a radioactive waste disposal programme are crucial to ensure that the necessary funding for completing the disposal programme is available. Estimating the cost for disposal is however a challenging and complex task. Disposal programmes themselves are complex and long-term undertakings and conditions can be expected to change significantly over the time-span during which a disposal programme is developed and implemented. This publication provides Member States with guidance on how to develop cost estimates for a disposal programme and on how to establish funding mechanisms. It will help readers in becoming informed clients by familiarizing themselves with the approaches and complexities in cost estimates and funding mechanisms for disposal. The publication is applicable to all waste categories and both near surface and geological disposal. It contains relevant examples and case studies from national programmes. The cost figures are intended to give an indication of the possible cost of certain parts or aspects of the disposal programme rather than to compare different disposal programmes' costs.

This publication explains the concepts of quality assurance and quality control. It provides examples, illustrated by good practices, of their implementation within the processes of the management systems of nuclear facilities and describes how they are managed through interfaces with suppliers and subcontractors. The publication discusses the elements of a management system relevant for the quality assurance and quality control functions, such as the generation and retention of documented information. The information presented will help in ensuring the safe and economic operation of nuclear facilities and provide a neutral technical basis for dialogue between government bodies, regulators, plant operators and suppliers when dealing with management system, quality assurance and quality control issues.

New geochemical and mineralogical data from research conducted under the IAEA coordinated research project entitled Geochemical and Mineralogical Characterization of Uranium and Thorium Deposits has resulted in a better understanding of the genesis of uranium and thorium mineralization. This publication presents a summary of the research and selected papers from the project’s partners. The results are expected to enhance exploration programmes, resource evaluation and sustainable supply of uranium and thorium for peaceful purposes.

This publication presents the latest update to the INPRO methodology for Nuclear Energy Systems sustainability assessment in the area of waste management and reflects detailed discussions held at an IAEA technical meeting. Waste generated by nuclear energy systems and considered in this publication includes all classes and categories of waste from nuclear power plants and nuclear fuel cycle facilities over the course of normal operations and anticipated operational occurrences. It is anticipated that the information presented in this and other INPRO publications, for example IAEA Nuclear Energy Series No. NG-T-3.12, will assist in the identification of areas for improvement in nuclear energy systems.

This Safety Guide provides recommendations on specific safety measures to meet the requirements of IAEA Safety Standards Series No. GSR Part 3 and other relevant Safety Requirements publications on the use of X ray generators and other types of radiation sources that are used for inspection purposes and for non-medical human imaging. The recommendations provided are primarily for organisations that are authorized to use X ray generators and other types of radiation sources for such purposes, as well as for radiation protection experts, radiation protection officers and staff of regulatory bodies. The publication may also be of interest to designers and manufacturers of relevant X ray generators and sources.

This revision provides guidance on how to establish or improve, develop, implement, maintain, and sustain computer security within nuclear facilities. This publication addresses the use of risk informed approaches to establish and enhance computer security policies, programmes; it describes the integration of computer security into the management system of a facility; establishes a systematic approach to identifying facility functions and appropriate computer security measures that protect sensitive digital assets and the facility from the consequence of cyber-attacks consistent with the threat assessment or design basis threat.

This is the 41st edition of Reference Data Series No. 2, which presents the most recent reactor data available to the IAEA. It contains summarized information as of the end of 2020 on power reactors operating, under construction and shut down as well as performance data on reactors operating in the IAEA Member States. The information is collected through designated national correspondents in the Member States and the data are used to maintain the IAEA's Power Reactor Information System (PRIS).

This book follows a small public agency in Washington State that undertook one of the most ambitious construction projects in the nation in the 1970s: the building of five large nuclear power plants. By 1983, delays and cost overruns, along with slowed growth of electricity demand, led to cancellation of two plants and a construction halt on two others. Moreover, the agency defaulted on $2.25 billion of municipal bonds, leading to a monumental court case that took nearly a decade to resolve fully. Daniel Pope sets this in the context of the postwar boom's ending, the energy shocks of the 1970s, a new restraint in forecasting demand, and shifting patterns of municipal finance. Nuclear Implosions also traces the entangling alliance between civilian nuclear energy and nuclear weapons and recounts a telling example of how the law has become a primary method of resolving disputes in a litigious society.

Principles of Nuclear Rocket Propulsion, Second Edition continues to put the technical and theoretical aspects of nuclear rocket propulsion into a clear and unified presentation, providing an understanding of the physical principles underlying the design and operation of nuclear fission-based rocket engines. This new edition expands on existing material and adds new topics, such as antimatter propulsion, a description of a liquid core-based nuclear rocket engine, nuclear rocket startup, new fuel forms, reactor stability, and new advanced reactor concepts. This new edition is for aerospace and nuclear engineers and advanced students interested in nuclear rocket propulsion.

This book follows a small public agency in Washington State that undertook one of the most ambitious construction projects in the nation in the 1970s: the building of five large nuclear power plants. By 1983, delays and cost overruns, along with slowed growth of electricity demand, led to cancellation of two plants and a construction halt on two others. Moreover, the agency defaulted on $2.25 billion of municipal bonds, leading to a monumental court case that took nearly a decade to resolve fully. Daniel Pope sets this in the context of the postwar boom's ending, the energy shocks of the 1970s, a new restraint in forecasting demand, and shifting patterns of municipal finance. Nuclear Implosions also traces the entangling alliance between civilian nuclear energy and nuclear weapons and recounts a telling example of how the law has become a primary method of resolving disputes in a litigious society.

A quiet French country district is the site of a nuclear waste-processing plant. Francoise Zonabend describes the ways in which those working in the plant, and living nearby, come to terms with the risks in their daily lives. She provides a superb sociology of the nuclear work-place, with its divisions and hierarchies, and explains the often unexpected responses of the workers to the fear of radiation and contamination. The work is described euphemistically in terms of women's tasks - cleaning, cooking, preparing a soup - but the male workers subvert this language to create a more satisfying self-image. They divide workers into the cautious ('rentiers') and the bold ('kamikazes') who relish danger. By analysing work practices and the language of the work-place, the author shows how workers and locals can recognise the possibility of nuclear catastrophe while, at the same time, denying that it could ever happen to them. This is a major contribution to the anthropology of modern life.

Dekades lank het die wereld gegis oor Suid-Afrika en Die Bom. Die land het ses kernbomme in die geheim ontwikkel, maar hulle self vernietig. Geen ander land ter wereld het dit nog ooit gedoen nie. Hierdie boek is vir wetenskaplikes en leke, en lees soos 'n spanningsverhaal. Dit is die volledigste opgaaf van Suid-Afrika se kernwapenvermoe tot dusver, en geskryf deur 'n kernfisikus wat sedert 1975 direk by die proses betrokke was. Saam met sy dogter Lydia von Wielligh-Steyn deel dr. Nic von Wielligh 'n fassinerende verhaal oor die atoommonster en hoe hy getem is.

The United States (US) program for siting interim storage and permanent disposal facilities for used nuclear fuel (UNF) is at a crossroads. The March 2010 request by the US Department of Energy (DOE) to the US Nuclear Regulatory Commission (NRC) for termination of the Yucca Mountain Project (YMP) license application, followed one year later by the disastrous nuclear events in Fukushima, Japan, have resulted in a fundamental reconsideration of approaches for siting interim and permanent UNF management facilities in the US. This book provides findings from a set of social science studies undertaken by the Center for Risk and Crisis Management (CRCM) and Sandia National Laboratories (SNL), which focus on public attitudes and preferences concerning the siting of nuclear repositories and interim storage facilities. This book is also a framework for moving toward a sustainable program to deploy an integrated system capable of transporting, storing, and disposing of used nuclear fuel and high-level radioactive waste from civilian nuclear power generation, defence, national security and other activities.

This publication addresses the sustainability of all aspects of a national nuclear security regime, including those relating to nuclear material and nuclear facilities, other radioactive material and associated facilities, and nuclear and other radioactive material out of regulatory control. The publication is relevant for States that have established a nuclear security regime as well as for States that are in the process of establishing one. It includes guidance on how to address challenges in sustaining a nuclear security regime over time. It also addresses the initial development and implementation of the regime, particularly where sustainability can be built into it as part of its design.