Introduction
For their economical viability, fusion power plants based on a Deuterium-Tritium fuel cycle will have to breed their own tritium in-situ. Yet, tritium breeding blankets are one of the most important and novel technical components in any of the planned next step devices to follow ITER. Therefore, nations and companies around the world have embarked on dedicated R&D programmes, whose role it is to address and resolve the feasibility and attractiveness issues of the tritium breeding blanket concepts being considered. Feasibility issues are those issues that could reduce or close the available design window or lead to unacceptable reliability, availability, or lifetime; and/or unacceptable investment impact. Attractiveness issues could instead reduce the system performance and or lifetime, increase system cost, and/or have less desirable safety or environmental implications. The strategy followed by some nations for the development of their breeding blanket technology includes the reliance on the ITER Test Blanket Module (TBM) programme for providing initial important technology information related to a wide range of issues such as breeding blanket design, fabrication, vacuum vessel integration, commissioning, operation, reliability, availability, and many more.Against this backdrop, the IAEA is launching a series of Technical Meetings on the topic of tritium breeding blankets and associated neutronics.?
Objectives?
The objectives of the first Technical Meeting in the series are threefold:?

• Provide a forum for exchanging and discussing technical issues associated to the development and qualification of tritium breeding blanket technologies;
• Contribute to the establishment of specific guidelines for the qualification of tritium breeding blankets as part of fusion facilities;
• Contribute to harvesting the return on experience from the ITER TBM Program to inform and support the development of breeding blankets for next step fusion facilities.?

Topics
The programme will consist of sessions with invited speakers as well as regular oral talks, poster presentations and discussions. A programme Committee made up of a representative international membership will be responsible for selecting the invited and regular oral presentations as well as the poster contributions. It will also be responsible for arranging the technical and discussion sessions, as well as for the overall scientific content of the event. The scope of the Technical Meeting covers the following topics:
Topic 1: Breeding blanket design and performanceTopic 2: Manufacturing, assembly, and licensingTopic 3 Testing and qualification
More information on the topics can be found on the event INDICO page: Technical Meeting on Tritium Breeding Blankets and Associated Neutronics (2-5 September 2025): Overview · Indico for IAEA Conferences