This publication addresses the basics of the application of a graded approach in the regulatory oversight of nuclear installations, describes the approaches currently implemented by several regulatory bodies around the world and, based on these examples, proposes a generic methodology for application of a graded approach to regulation of nuclear installations. The publication provides practical examples and information on developing and implementing strategies and processes for all regulatory functions.

La Guía para el uso de sedimentos en la reconstrucción histórica de la contaminación en zonas costeras presenta los métodos, procedimientos operacionales y recomendaciones prácticas para el muestreo, la preparación y la fechación de perfiles sedimentarios mediante los radionucleidos 210Pb y 137Cs, con el propósito de evaluar tendencias históricas de la contaminación en zonas costeras. La guía contribuye a la armonización metodológica entre los laboratorios que fechan sedimentos marino-costeros y es complementaria al libro Radiocronología de sedimentos costeros utilizando 210Pb: modelos, validación y aplicaciones, publicado por el OIEA en 2012.

1m Jahre 1958 hat die Heidelberger Akademie der Wissenschaf- ten die Preisaufgabe gestellt, in einer wissenschaftlichen Unter- suchung die Vorteile und Gefahren bei der friedlichen Nutzung der Kernenergie gegeneinander abzuwagen und damit einen Beitrag zu der Frage zu liefern, welches das zweckmaBigste Tempo fiir die Einfiihrung der neuen Energiequelle ist. Dieser Aufgabe hat sich der Autor der vorliegenden Schrift unter Beschrankung der Dar- stellung auf die naturwissenschaftlich-technischen Grundlagen und auf die wichtigsten wirtschaftlichen und soziologischen Aspekte mit Sachkenntnis und hohem VerantwortungsbewuBtsein unter- zogen. Hierbei hat er den Schutz des Menschen vor den Gefahren der Radioaktivitat besonders beriicksichtigt. Seine SchluBfolge- rung, daB der Nutzen sich bei naherer Untersuchung als viel groBer erweise als der unter ungiinstigsten Bedingungen angenommene Schaden, den man bei anderen Industriezweigen ohne weiteres hin- nehmen wiirde, kann als allgemeine Begriindung und Rechtferti- gung fiir die Arbeiten zur Erforschung und Nutzung der Kern- energie in der Bundesrepublik Deutschland dienen. Die Gefahren, die mit der neuen Technik verbunden sind, konnen beherrscht werden. Sie kommen nicht aus der Rationalisierung und Automati- sierung der Produktionsprozesse, sondern aus einer Minderung des VerantwortungsbewuBtseins. Es gilt daher, die Verantwortung des Menschen zu starken, damit er sich jederzeit der Folgen seines Tuns oder Unterlassens im Labor, im Technikum, in der Schaltwarte oder auf welchem Arbeitsplatz auch immer bewuBt ist. Prof. Dr.

The importance of recycling the spent nuclear fuel through partitioning processes has been recognized worldwide for increasing and sustaining nuclear energy. Therefore, the development of advanced partitioning processes, based either on hydrometallurgical or on pyrometallurgical technologies, has received an increasing interest in recent years. Moving towards industrial demonstration, partitioning processes are applied for the separation of actinides, including minor actinides, not only to reduce the burden of high level waste to be disposed of, in terms of heat-load and radiotoxicity, but also to improve the efficiency of the resources' utilization. Furthermore, in the case of Molten Salt Reactors, whose fuel cycle is primary based on pyrochemical processes, there is a need for strengthening pyrometallurgical technologies. This publication reviews the status and trends in the development of pyrometallurgical processes and technologies for processing spent nuclear fuel and identifies gap areas requiring further development.

This publication addresses relevant aspects of foreign material management for nuclear power plants, including the roles of all stakeholders at various stages during the lifetime of a nuclear power plant. The report shares knowledge on challenges, solutions and good practices based on operating experience. Providing a set of descriptive processes that integrate safety, performance and economic aspects of foreign material management, the publication supports efforts to eliminate or minimize foreign material related incidents, and to ensure reliable and efficient operation and maintenance of nuclear power plants.

Fundamental Issues Critical to the Success of Nuclear Projects presents a complete analysis of the core considerations for those deploying nuclear power plants, managing existing plants, and also for those developing and building new plants. It includes critical considerations, such as cost-estimation, safety procedures, and regulatory compliance, manpower optimization and development, and the application of innovative technologies, such as the use of robotics. Those important issues have been addressed in a systematic way, and explanations have been provided on how the nuclear industry has continuously found solutions to mitigate and eventually solve them properly.

Auf der ersten IAEA-(Internationale Atomenergie-Behorde) Konferenz im Oktober 1957 in Wien wurden zehn neue Mitgliedsnationen des Rates der Gouverneure gewahlt. Diese neuen Ratsmitglieder wurden nahezu aus schliesslich von Reprasentanten der Entwicklungslander gestellt. Nichts demonstriert so sehr das Interesse der Entwicklungslander an den Pro blemen der Atomkerntechnik wie diese Wahl. Die Gouverneure der IAEA ha ben am 17. April 1959 beschlossen, technische Missionen nach den Ent wicklungslandern, u.a. der VAR, Burma, Brasilien usw., zu senden. Je doch ist die zunachst sehr optimistische Beurteilung der Moglichkeiten der Kerntechnik fur die Entwicklungslander einer wesentlich skepti scheren Haltung gewichen. Das Forschungsinstitut fur internationale technische Zusammenarbeit an der Technischen Hochschule Aachen hat deshalb Herrn Dipl.-Physiker Manfred SIEBKER beauftragt, die verschiedenartigen Anwendungsmoglich keiten der Atomkerntechnik aufzuzeigen und auf ihre Bedeutung fur die wirtschaftliche Entfaltung der Entwicklungslander hinzuweisen. D.H. SCHWENCKE Institutsleiter Seite 5 Einleitung Diese Arbeit hat das Ziel, die verschiedenartigen Nutzungsmoglichkeiten der Atomkerntechnik aufzuzeigen und im Hinblick auf ihr wirtschaftli ches Potential in Entwicklungslandern zu analysieren. Weiterhin soll in grossen Zugen ein tlberblick uber den jetzigen Ausbaustand dieser Gebiete gegeben werden, verbunden mit einer Kritik an den von Land zu Land unterschiedlichen okonomischen Einflussgrossen."

Pressurized Heavy Water Reactors: Atucha-II, the eighth volume in the JSME Series on Thermal and Nuclear Power Generation, provides a comprehensive and complete review of a single type of reactor in a very accessible and practical way. The book presents a close analysis of the Atucha reactor, covering reactor physics, aging management of major components, and the role of codes in PHWR and Nuclear Regulation and Licensing. Including contemporary capabilities and challenges of nuclear technology, the book offers solutions and advice on common problems faced, guiding the reader through safe and approved processes that will help them reach suitable solutions. Professionals involved in lifecycle assessments and researchers interested in the development and improvement of nuclear energy technologies will gain a deep understanding of PHWR nuclear reactor physics, design and licensing.

Pressurized Heavy Water Reactors: CANDU, the seventh volume in the JSME Series on Thermal and Nuclear Power Generation series, provides a comprehensive and complete review of a single type of reactor in a very accessible and practical way. The book presents the full lifecycle, from design and manufacturing to operation and maintenance, also covering fitness-for-service and long-term operation. It does not relate to any specific vendor-based technology, but rather provides a broad overview of the latest technologies from a variety of active locations which will be of great value to countries invested in developing their own nuclear programs. Including contemporary capabilities and challenges of nuclear technology, the book offers practical solutions to common problems faced, along with the safe and approved processes to reach suitable solutions. Professionals involved in nuclear power plant lifecycle assessment and researchers interested in the development and improvement of nuclear energy technologies will gain a deep understanding of PHWR nuclear reactor physics, chemistry and thermal-hydraulic properties.

Applications of Nuclear and Radioisotope Technology: For Peace and Sustainable Development presents the latest technology and research on nuclear energy with a practical focus on a variety of applications. Author Dr. Khalid Al-Nabhani provides a thorough and well-rounded view of the status of nuclear power generation in order to promote its benefits towards a sustainable, clean and secure future. This book offers innovative theoretical, analytical, methodological and technological approaches, encourages a positive societal and political uptake. This book enhances awareness of peaceful nuclear applications across a broad spectrum of industries, including power generation, agriculture, and medicine. It presents successful examples and lessons learned across many countries that are working towards their sustainability goals in cooperation with the IAEA and AAEA, to benefit researchers, professionals and decision-makers implementing and developing their own nuclear strategies for the future.

The assessment approach described in this publication provides a comprehensive means to determine the status of the infrastructure conditions relevant to all issues detailed in IAEA Nuclear Energy Series No. NP-T-5.1, Specific Considerations and Milestones for a Research Reactor Project. This approach can be used by any interested Member State for self-assessment to identify weaknesses and to determine the additional work needed to develop its national nuclear infrastructure for research reactor programme to an appropriate level. Member States planning to embark on both a research reactor programme and a nuclear power programme, may refer to this publication to ensure that the approach and methodology for the implementation of both programmes is harmonized, efficient and effective.

Flexible operation and related power changes can have a direct impact on fuel integrity through pellet–cladding interaction/stress corrosion cracking (PCI/SCC) phenomena, which could lead to fuel failures in certain conditions. For some anticipated operational occurrences that affect fuel with small PCI/SCC margins, the fuel failures caused by PCI/SCC cannot be assumed to be benign, and a significant radiological source term may be generated. This publication provides an overview of PCI/SCC studies and reports on the progress made since the early 2000s, based on presentations and discussions at a related IAEA technical meeting held in October 2019.

This publication presents a review of technical solutions providing both corrective actions and preventive measures to reduce the ingress of radon indoors. A description of methods, design and implementation of measures to reduce ingress of radon into buildings, and of the materials and equipment used in these solutions are included. The publication also presents methods for measuring gamma radiation from radionuclides in building and construction materials and for methods of reducing exposure due to this gamma radiation. Aimed primarily at building and construction professionals designing and installing radon preventive and mitigation measures, this publication will also be a useful resource for national authorities responsible for the development of national building codes and implementation of national radon action plans.

Nuclear Decommissioning Case Studies: Policies, Strategies, Planning and Knowledge Management focuses on policy, strategy, planning and knowledge management in nuclear decommissioning, offering readers guidance on events that occur in early stages of the lifecycle. The book helps readers plan in advance to avoid and reduce schedule delays and cost overruns to ensure a smooth, safe and successful decommissioning. Events covered in this book range from top-level conception, to strategy selection, the drafting of procedures, and the sharing of best practices. Alongside the other case study books in this series, readers will obtain an understanding of various key points and lessons learned. Decommissioning experts, including regulators, operators, waste managers, researchers and academics will find this book to be suitable supplementary material to Michele Laraia's reference works on the theory and applications of nuclear decommissioning.

The book covers basic approaches to the nuclear fuel state of energy reactors in the last stages of the nuclear fuel cycle, these have been developed by the authors based on Ukrainian Nuclear Power Plant (NPP) operational experience. The book starts by looking at the physical safety basis of water-water energetic reactor (WWER) nuclear fuel. It goes on to discuss modern approaches to the heat exchange modelling in nuclear power plant equipment. Next, the safety criteria when making a decision about dry storage for WWER-1000 fuel assembly are discussed. Then the effect of reactor capacity cyclic changes on energy accumulation of creep formations in fuel cladding is covered in full, along with a chapter on the analysis of WWER-1000 fuel cladding failure. Finally, the book finishes with a description of thermal safety criteria for dry storage of spent nuclear fuel. The book is essential reading for anyone concerned with NPP maintenance and safety.

Sustainability of Life Cycle Management for Nuclear Cementation-Based Technologies, edited by Dr. Rahman and Dr. Ojovan, presents the latest knowledge and research on the management of cementitious systems within nuclear power plants. The book covers aging, development and updates on regulatory frameworks on a global scale, the development of cementitious systems for the immobilization of problematic wastes, and the decommissioning and decontamination of complex cementitious systems. The book's editors and their team of experts combine their practical knowledge to provide the reader with a thorough understanding on the sustainability of lifecycle management of cementitious systems within the nuclear industry. Sections provide a comparative tool that presents national regulations concerning cementitious systems within nuclear power plants, check international and national evaluation results of the sustainability of different systems, help in the development of performance test procedures, and provide a guide on aging nuclear power plants and the long-term behavior of these systems in active and passive safety environments.

There is renewed interest in Member States in the development and deployment of small modular reactors (SMRs). Specific technical characteristics of this reactor type introduce new deployment possibilities. This publication provides current information on considerations about environmental impact assessments (EIAs) related to SMRs. Under many regulatory regimes, the EIA report is a prerequisite for licensing and an important tool to confirm that the potential site is suitable for the future construction and operation of a reactor. Therefore, this publication which discusses approaches to address specific issues related to the EIA for SMRs will be of use to technology holders and licensing authorities.

Energy managers need to learn new and diverse ways to approach energy management in their company's assets as technology continues to evolve. Built into one cohesive and fundamental resource, Introduction to Energy Essentials: Insight into Nuclear, Renewable, and Non-Renewable Energies delivers an informative tool to understand the main steps for introducing and maintaining an energy management system (EnMS). Starting with a high-level introduction, the reference then takes a structured approach and dives into different sources of energy along with their contribution to energy efficiency, focusing on nuclear power, renewable and non-renewable energies. Multiple options are further discussed including economic considerations and cost comparisons per energy source, energy storage technology, and how to introduce an energy management system into your company. More advanced topics include nuclear reactor power plant systems and their thermal hydraulic analysis as well as cyber resiliency for future electric power and well plant control systems. Authored by experts, Introduction to Energy Essentials: Insight into Nuclear, Renewable, and Non-Renewable Energies gives today's energy managers and engineers a solid starting point to meeting the energy demands of today and in the future.

High-Temperature Gas Reactors is the fifth volume in the JSME Series on Thermal and Nuclear Power Generation. Series Editor Yasuo Koizumi and his Volume editors Tetsuaki Takeda and Yoshiyuki Inagaki present the latest research on High-Temperature Gas Reactor (HTGR) development and utilization, beginning with an analysis of the history of HTGRs. A detailed analysis of HTGR design features, including reactor core design, cooling tower design, pressure vessel design, I&C factors and safety design, provides readers with a solid understanding of how to develop efficient and safe HTGR within a nuclear power plant. The authors combine their knowledge to present a guide on the safety of HTGRs throughout the entire reactor system, drawing on their unique experience to pass on lessons learned and best practices to support professionals and researchers in their design and operation of these advanced reactor types. Case studies of critical testing carried out by the authors provide the reader with firsthand information on how to conduct tests safely and effectively and an understanding of which responses are required in unexpected incidents to achieve their research objectives. An analysis of technologies and systems in development and testing stages offer the reader a look to the future of HTGRs and help to direct and inform their further research in heat transfer, fluid-dynamics, fuel options and advanced reactor facility selection. This volume is of interest for nuclear and thermal energy engineers and researchers focusing on HTGRs, HTGR plant designers and operators, regulators, post graduate students of nuclear engineering, national labs, government officials and agencies in power and energy policy and regulations.

Hybrid Nuclear Energy Systems: A Sustainable Solution for the 21st Century provides practical insights on the environmental impact of the hybrid systems discussed, as well as important technical, economic, licensing and safety considerations. This book acts as a guide for the implementation of hybrid energy systems and authoritatively compares the benefits and possible downfalls of each technology. This enables the reader to analyze their own setting or research and evaluate the most economical and effective solution. Energy engineering researchers and professional engineers will benefit from the practical and technical approach of this book. This book will also benefit regulators and economists who will gain a clear understanding of how a hybrid system is not only designed, but also how societies will benefit from a cleaner and more abundant energy source.

Advances in Power Boilers is the second volume in the JSME Series on Thermal and Nuclear Power Generation. The volume provides the fundamentals of thermal power generation by firstly analysing different fuel options for thermal power generation and then also by tracing the development process of power boilers in about 300 years. The design principles and methodologies as well as the construction, operation and control of power boilers are explained in detail together with practical data making this a valuable guide for post-graduate students, researchers, engineers and regulators developing knowledge and skill of thermal power generation systems. Combining their wealth of experience and knowledge, the author team presents recent advanced technologies to the reader to enable them to further research and development in various systems, notably combined cycles, USC and A-USC, as well as PFBC and IGCC. The most recent best practices for material development for advanced power system as well as future scope of this important field of technology are clearly presented, and environment, maintenance, regulations and standards are considered throughout. The inclusion of photographs and drawings make this a unique reference for all those working and researching in the thermal engineering fields. The book is directed to professional engineers, researchers and post-graduate students of thermal engineering in industrial and academic field, as well as plant operators and regulators.

Fundamentals of Thermal and Nuclear Power Generation is the first volume in the JSME Series in Thermal and Nuclear Power Generation. The first part of this volume provides a thorough and complete reference on the history of thermal and nuclear power generation, which has informed and sculpted today's industry. It prepares readers for subsequent publications in the series that address more advanced topics and will particularly benefit early career researchers and those approaching the industry from an alternative discipline. Modern thermal and nuclear power generation systems and technologies are then explored, including clear analysis on the fundamentals of thermodynamics, hydrodynamics, thermal engineering, combustion engineering, and nuclear physics. The impact of these technologies on society is considered throughout, as well as supply issues, accident risk analysis, and important emission and sustainability considerations. This book is an invaluable resource for researchers and professional engineers in nuclear and thermal energy engineering, and postgraduate and undergraduate students in power generation, especially nuclear and thermal.