IAEA SMR longitudinal dataset, 2012–2024

This dataset provides a harmonised longitudinal record of small modular reactor (SMR) designs reported across seven editions of the International Atomic Energy Agency (IAEA) SMR design catalogues published between 2012 and 2024. The dataset tracks design entries across catalogue editions and records harmonised information on design name, country, reactor type, cooling type, capacity and reported development status. It is intended to support longitudinal analysis of SMR catalogue evolution and design-status reporting across successive IAEA editions.本数据集提供了一套经统一标准化处理的小型模块化反应堆（Small Modular Reactor, SMR）设计纵向记录，数据来源于2012年至2024年间发布的7版国际原子能机构（International Atomic Energy Agency, IAEA）SMR设计名录。该数据集追踪不同名录版本中的设计条目，并记录经统一标准化处理的设计名称、所属国家、反应堆类型、冷却方式、装机容量及已公开的开发状态等信息。本数据集旨在为IAEA各版SMR设计名录的演进历程，以及各版本设计状态披露情况的纵向分析研究提供支撑。