Boletim Webnuclear - enero 2026

Use of Low Enriched Uranium and Applications of Accelerator Driven Systems: Final Report of a Coordinated Research Project

IAEA-TECDOC-2107 ¦ English ¦ ISBN 978-92-0-124825-1 ¦ 286 pages ¦ Date published: 2025

Many IAEA Member States are actively engaged in activities related to Accelerator Driven Systems (ADS), with some planning the construction of new ADS facilities. A key requirement for these systems is the use of Low Enriched Uranium (LEU) rather than High Enriched Uranium (HEU) fuel for their subcritical assemblies, in line with non-proliferation objectives. This new IAEA publication presents the outcomes of a Coordinated Research Project on LEU-based ADS systems. It features both experimental and analytical work, offering insights into system design, operational analysis, and potential applications. The report is a valuable resource for those involved in LEU ADS project planning, research programme development, and the analysis of facility operations and experiments. Whether initiating a new ADS project or

refining an existing one, this publication provides practical guidance and technical depth to support project development.

Best Practises to Retain and Support Women in the Nuclear Sector

Nuclear Energy Agency ¦ NEA/WKP(2025)1 ¦ English ¦ 24 pages ¦ Date published: 2025

In the evolving landscape of scientific and technological advancements, the issue of gender balance within the nuclear sector stands as both a challenge and an opportunity. This best practices document is a preliminary collaborative effort undertaken by the Nuclear Energy Agency (NEA) High-Level Group on Improving the Gender Balance in the Nuclear Sector (HLG-GB). It serves as an initial resource for organisations in adhering countries and others aspiring to fulfil the commitment to implement the 2023 OECD Recommendation of the Council on Improving the Gender Balance in the Nuclear Sector.

Status and Trends in Spent Fuel and Radioactive Waste Management (Rev. 2)

STI/PUB/2109 ¦ English ¦ ISBN 978-92-0-104725-0 ¦ 118 pages ¦ Date published: 2025

This publication aims to be the authoritative publication that systematically and periodically summarizes the global status and trends of programmes and inventories for spent fuel and radioactive waste management. The publication will be useful for policy and decision makers and technical experts—in particular experts of national and local governments, funding organizations, regulatory authorities, public health authorities, facility operators, waste management bodies and international organizations—concerned with planning and implementing spent fuel and radioactive waste management activities.

Management of Spent Fuel from Nuclear Power Reactors: Meeting the Moment

STI/PUB/2127 ¦ English ¦ ISBN 978-92-0-122625-9 ¦ 130 pages ¦ Date published: 2025

The IAEA hosted the International Conference on the Management of Spent Fuel from Power Reactors in Vienna from 10–14 June 2024, under the theme “Meeting the Moment.” The event emphasized, among other aspects, the vital role of the younger generation of professionals in sustaining the implementation of spent nuclear fuel (SNF) management programmes. The conference served as a platform for sharing national SNF management strategies and exploring how spent fuel management supports nuclear energy’s evolving role in a changing energy mix. The scope of the conference covered all stages of the management of spent fuel from nuclear power reactors past, present and future, including SMR/AMR technologies, and how decisions taken in the rest of the nuclear fuel cycle could affect its management. This publication provides a summary of the discussions held during technical sessions, plenary panel discussions (two on national strategies, one on stakeholder engagement and one on innovation and integration), summaries of the presented papers, as well as opening and closing remarks. All presented papers are available in the supplementary files on the IAEA publications website.

Summary Report on the Joint NEA-IAEA Technical Meeting on Management of Direct Current Power Systems and Application of New Devices in Safety Electrical Power Systems

Nuclear Energy Agency/OECD ¦ NEA/CSNI/R(2021)4 ¦ English ¦ 32 pages ¦ Date published: 2025

In 2016, the Nuclear Energy Agency (NEA) Committee on Safety of Nuclear Installations (CSNI) established a permanent Working Group on Electrical Power Systems (WGELEC) as a follow up to the activities DIDELSYS (Defence in Depth of Electrical Systems and Grid Interaction) and ROBELSYS (Robustness of Electrical Systems of Nuclear Power Plants in Light of the Fukushima Daiichi Accident). The working group’s objectives are to improve international understanding on the issues that can lead to a degraded power supply challenging the functionality of equipment relying on electrical power systems, and sharing good practice techniques to prevent, detect and mitigate such events. As part of their initial tasks, the WGELEC selected several activity items including management of direct current power systems (activity 4), and application of new power electronic and digital devices in safety electrical power systems (activity 5). Since any potential benefit may be gained by promoting knowledge in these two areas (activities 4 and 5) and thereby enhancing nuclear safety, the WGELEC decided to hold a technical meeting, which was jointly organised by the NEA and the IAEA. This technical meeting was designed to be a part of the implementation of activities 4 and 5 by widening participation beyond NEA member countries.