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    Instrumentation and Control Systems and Software Important to Safety for Research Reactors
    Instrumentation and Control Systems and Software Important to Safety for Research Reactors
    Instrumentation and Control Systems and Software Important to Safety for Research Reactors
    Ebook185 pages1 hour

    Instrumentation and Control Systems and Software Important to Safety for Research Reactors

    By IAEA

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    This publication provides specific recommendations on research reactor instrumentation and control systems and software important to safety, including instrumentation and control system architecture and associated components, from sensors to actuators, operator interfaces and auxiliary equipment, to meet the relevant requirements of IAEA Safety Standards Series No. SSR-3, Safety of Research Reactors. The recommendations and guidance apply to both the design and configuration management of instrumentation and control systems for new research reactors and the modernization of the instrumentation and control systems at existing research reactor facilities. In addition, this Safety Guide provides recommendations and guidance on human factors engineering and human-machine interfaces, and for computer based systems and software for use in instrumentation and control systems important to safety. This Safety Guide is a revision of IAEA Safety Standards Series No. SSG-37, which it supersedes.
    LanguageEnglish
    PublisherInternational Atomic Energy Agency
    Release dateAug 14, 2023
    ISBN9789201035233
    Instrumentation and Control Systems and Software Important to Safety for Research Reactors

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      Instrumentation and Control Systems and Software Important to Safety for Research Reactors - IAEA

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      INSTRUMENTATION AND

      CONTROL SYSTEMS AND

      SOFTWARE IMPORTANT

      TO SAFETY FOR

      RESEARCH REACTORS

      IAEA SAFETY STANDARDS SERIES No. SSG-37 (Rev. 1)

      INSTRUMENTATION AND

      CONTROL SYSTEMS AND

      SOFTWARE IMPORTANT

      TO SAFETY FOR

      RESEARCH REACTORS

      SPECIFIC SAFETY GUIDE

      INTERNATIONAL ATOMIC ENERGY AGENCY

      VIENNA, 2023

      COPYRIGHT NOTICE

      All IAEA scientific and technical publications are protected by the terms of the Universal Copyright Convention as adopted in 1952 (Berne) and as revised in 1972 (Paris). The copyright has since been extended by the World Intellectual Property Organization (Geneva) to include electronic and virtual intellectual property. Permission to use whole or parts of texts contained in IAEA publications in printed or electronic form must be obtained and is usually subject to royalty agreements. Proposals for non-commercial reproductions and translations are welcomed and considered on a case-by-case basis. Enquiries should be addressed to the IAEA Publishing Section at:

      Marketing and Sales Unit, Publishing Section

      International Atomic Energy Agency

      Vienna International Centre

      PO Box 100

      1400 Vienna, Austria

      fax: +43 1 26007 22529

      tel.: +43 1 2600 22417

      email: [email protected]

      www.iaea.org/publications

      © IAEA, 2023

      Printed by the IAEA in Austria

      August 2023

      STI/PUB/2051

      IAEA Library Cataloguing in Publication Data

      Names: International Atomic Energy Agency.

      Title: Instrumentation and control systems and software important to safety for research / International Atomic Energy Agency.

      Description: Vienna : International Atomic Energy Agency, 2023. | Series: IAEA safety standard series, ISSN 1020-525X ; no. SSG-37 (Rev. 1) | Includes bibliographical references.

      Identifiers: IAEAL 23-01595 | ISBN 978–92–0–103323–9 (paperback : alk. paper) | ISBN 978–92–0–103423–6 (pdf) | ISBN 978–92–0–103523–3 (epub)

      Subjects: LCSH: Nuclear reactors — Safety measures. | Nuclear reactors — Instruments. | Nuclear reactors — Control. | Digital control systems.

      Classification: UDC 621.039.58 | STI/PUB/2051

      FOREWORD

      by Rafael Mariano Grossi

      Director General

      The IAEA’s Statute authorizes it to establish…standards of safety for protection of health and minimization of danger to life and property. These are standards that the IAEA must apply to its own operations, and that States can apply through their national regulations.

      The IAEA started its safety standards programme in 1958 and there have been many developments since. As Director General, I am committed to ensuring that the IAEA maintains and improves upon this integrated, comprehensive and consistent set of up to date, user friendly and fit for purpose safety standards of high quality. Their proper application in the use of nuclear science and technology should offer a high level of protection for people and the environment across the world and provide the confidence necessary to allow for the ongoing use of nuclear technology for the benefit of all.

      Safety is a national responsibility underpinned by a number of international conventions. The IAEA safety standards form a basis for these legal instruments and serve as a global reference to help parties meet their obligations. While safety standards are not legally binding on Member States, they are widely applied. They have become an indispensable reference point and a common denominator for the vast majority of Member States that have adopted these standards for use in national regulations to enhance safety in nuclear power generation, research reactors and fuel cycle facilities as well as in nuclear applications in medicine, industry, agriculture and research.

      The IAEA safety standards are based on the practical experience of its Member States and produced through international consensus. The involvement of the members of the Safety Standards Committees, the Nuclear Security Guidance Committee and the Commission on Safety Standards is particularly important, and I am grateful to all those who contribute their knowledge and expertise to this endeavour.

      The IAEA also uses these safety standards when it assists Member States through its review missions and advisory services. This helps Member States in the application of the standards and enables valuable experience and insight to be shared. Feedback from these missions and services, and lessons identified from events and experience in the use and application of the safety standards, are taken into account during their periodic revision.

      I believe the IAEA safety standards and their application make an invaluable contribution to ensuring a high level of safety in the use of nuclear technology. I encourage all Member States to promote and apply these standards, and to work with the IAEA to uphold their quality now and in the future.

      The authoritative versions of the publications are the hard copies issued and available as PDFs on www.iaea.org/publications.To create the versions for e-readers, certain changes have been made, including the movement of some figures and tables.

      THE IAEA SAFETY STANDARDS

      BACKGROUND

      Radioactivity is a natural phenomenon and natural sources of radiation are features of the environment. Radiation and radioactive substances have many beneficial applications, ranging from power generation to uses in medicine, industry and agriculture. The radiation risks to workers and the public and to the environment that may arise from these applications have to be assessed and, if necessary, controlled.

      Activities such as the medical uses of radiation, the operation of nuclear installations, the production, transport and use of radioactive material, and the management of radioactive waste must therefore be subject to standards of safety.

      Regulating safety is a national responsibility. However, radiation risks may transcend national borders, and international cooperation serves to promote and enhance safety globally by exchanging experience and by improving capabilities to control hazards, to prevent accidents, to respond to emergencies and to mitigate any harmful consequences.

      States have an obligation of diligence and duty of care, and are expected to fulfil their national and international undertakings and obligations.

      International safety standards provide support for States in meeting their obligations under general principles of international law, such as those relating to environmental protection. International safety standards also promote and assure confidence in safety and facilitate international commerce and trade.

      A global nuclear safety regime is in place and is being continuously improved. IAEA safety standards, which support the implementation of binding international instruments and national safety infrastructures, are a cornerstone of this global regime. The IAEA safety standards constitute a useful tool for contracting parties to assess their performance under these international conventions.

      THE IAEA SAFETY STANDARDS

      The status of the IAEA safety standards derives from the IAEA’s Statute, which authorizes the IAEA to establish or adopt, in consultation and, where appropriate, in collaboration with the competent organs of the United Nations and with the specialized agencies concerned, standards of safety for protection of health and minimization of danger to life and property, and to provide for their application.

      With a view to ensuring the protection of people and the environment from harmful effects of ionizing radiation, the IAEA safety standards establish fundamental safety principles, requirements and measures to control the radiation exposure of people and the release of radioactive material to the environment, to restrict the likelihood of events that might lead to a loss of control over a nuclear reactor core, nuclear chain reaction, radioactive source or any other source of radiation, and to mitigate the consequences of such events if they were to occur. The standards apply to facilities and activities that give rise to radiation risks, including nuclear installations, the use of radiation and radioactive sources, the transport of radioactive material and the management of radioactive waste.

      Safety measures and security measures¹ have in common the aim of protecting human life and health and the environment. Safety measures and security measures must be designed and implemented in an integrated manner so that security measures do not compromise safety and safety measures do not compromise security.

      The IAEA safety standards reflect an international consensus on what constitutes a high level of safety for protecting people and the environment from harmful effects of ionizing radiation. They are issued in the IAEA Safety Standards Series, which has three categories (see Fig. 1).

      Safety Fundamentals

      Safety Fundamentals present the fundamental safety objective and principles

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