As of June 2021, Russia had ** operational nuclear research reactors, the highest in the world. As of that date, the total number of research reactors in operation amounted to around *** globally. The United States is the only other country with ** such research reactors.
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World Nuclear Association. (June 30, 2021). Number of operational nuclear research reactors worldwide as of June 2021, by country [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 22, 2026, from /statistics/1203545/global-number-of-operational-nuclear-research-reactors/
World Nuclear Association. "Number of operational nuclear research reactors worldwide as of June 2021, by country." Chart. June 30, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 22, 2026. /statistics/1203545/global-number-of-operational-nuclear-research-reactors/
World Nuclear Association. (2021). Number of operational nuclear research reactors worldwide as of June 2021, by country. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 22, 2026. /statistics/1203545/global-number-of-operational-nuclear-research-reactors/
World Nuclear Association. "Number of Operational Nuclear Research Reactors Worldwide as of June 2021, by Country." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 30 Jun 2021, /statistics/1203545/global-number-of-operational-nuclear-research-reactors/
World Nuclear Association, Number of operational nuclear research reactors worldwide as of June 2021, by country ÌÇÐÄÆƽâ°æ, /statistics/1203545/global-number-of-operational-nuclear-research-reactors/ (last visited July 22, 2026)
Number of operational nuclear research reactors worldwide as of June 2021, by country [Graph], World Nuclear Association, June 30, 2021. [Online]. Available: /statistics/1203545/global-number-of-operational-nuclear-research-reactors/
