Abstract (EN)Nuclear transmutation has been investigated since 1990 as a strategic option for managing long-lived high-level radioactive waste. This study presents a consolidated estimate of global research investment in nuclear transmutation for 1990–2025, excluding industrial demonstration and infrastructure costs. Based on analysis of CORDIS, OSTI, IAEA-INIS and institutional reporting (OECD/NEA, DOE, JAEA), we estimate approximately 350 research institutions have contributed significantly, representing ~3,500 unique individual researchers and a cumulative R partitioning and transmutation; public R portfolio reconstruction; research governance; reproducibility; accelerator-driven systems (ADS); fast reactors; minor actinides; nuclear fuel cycle; radioactive waste management; cost accountingMots-clés (FR) : transmutation nucléaire; séparation et transmutation; investissement public en R reconstruction de portefeuille; gouvernance de la recherche; reproductibilité; systèmes pilotés par accélérateur (ADS); réacteurs rapides; actinides mineurs; cycle du combustible; gestion des déchets radioactifs; comptabilité des coûts
Alain G. Elayi (Mon,) studied this question.