- Facebook
          - Flickr
          - RSS
          - Twitter
          - YouTube

# Domestic U.S. Reactor Conversions: Fact Sheet | National Nuclear Security Administration

        - Our Mission            - Managing the Stockpile
          - Preventing Proliferation
          - Powering the Nuclear Navy
          - Emergency Response
          - Recapitalizing Our Infrastructure
          - Continuing Management Reform
          - Countering Nuclear Terrorism 
        - About Us            - Our Programs
          - Our History
          - Who We Are
          - Our Leadership
          - Our Locations
          - Budget
          - Our Operations 
        - Media Room            - Congressional Testimony
          - Fact Sheets
          - Newsletters
          - Press Releases
          - Speeches
          - Events
          - Social Media
          - Video Gallery
          - Photo Gallery
          - NNSA Archive 
        - Federal Employment            - Apply for Our Jobs
          - Our Jobs
          - Working at NNSA 
        - Blog   

Home>Media Room>Fact Sheets>

## Fact Sheet

Domestic U.S. Reactor Conversions: Fact SheetMar 23, 2012
The National Nuclear Security Administration (NNSA) helps convert research reactors around the world from the use of highly-enriched uranium (HEU) fuel to low-enriched uranium (LEU) as a key part of its nuclear nonproliferation mission. Reactor Conversion is part of NNSA’s Global Threat Reduction Initiative (GTRI) efforts to develop and implement technologies to minimize and, to the extent possible, eliminate the civilian use of HEU, including in research reactors and isotope production facilities worldwide.

The National Nuclear Security Administration (NNSA) helps convert research reactors around the world from the use of highly-enriched uranium (HEU) fuel to low-enriched uranium (LEU) as a key part of its nuclear nonproliferation mission. Reactor Conversion is part of NNSA’s Global Threat Reduction Initiative (GTRI) efforts to develop and implement technologies to minimize and, to the extent possible, eliminate the civilian use of HEU, including in research reactors and isotope production facilities worldwide. 
            - All of the U.S. domestic research reactors that could be converted with existing, licensed fuel are operating on LEU.  
            - Since 2004 GTRI has converted seven domestic research reactors (at the University of Florida, Purdue, Oregon State, Washington State, University of Wisconsin, Texas A&M, and Idaho National Laboratory) from the use of HEU to LEU fuel. These conversions represent the elimination of approximately 39 kg of HEU use annually.
            - GTRI has confirmed the shutdown of two HEU-fueled reactors (one in California and one in Idaho). These shutdowns represent the elimination of approximately 3,007 kg of annual HEU use, equivalent to approximately 120 nuclear weapons per year.

GTRI is also working to develop a replacement LEU fuel and the associated fuel fabrication capability for the six remaining High Performance Research Reactors (HPRRs) in the United States that cannot convert with existing fuel.  The six HPRRs include nuclear research reactors at the Massachusetts Institute of Technology, University of Missouri, the National Institute of Standards and Technology (NIST), the High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory and the Advanced Test Reactor (ATR) at Idaho National Laboratory (INL) and its associated critical assembly (ATRC).

GTRI is working towards qualification and licensing of a new high-density LEU fuel by the U.S. Nuclear Regulatory Commission (NRC). After the fuel has been licensed by the NRC, the MIT research reactor intends to be the first HPRR to convert.

              - Printer-friendly version

            - 
            - 
            - 
            - 

### 

US Department of State: Domestic US Reactor Conversion

Press Releases

### 

Jan 23, 2013

NNSA Conducts Radiation Medical Management Training in China

Jan 17, 2013

NNSA, Maryland Partner to Improve Radiological/Nuclear Security, Emergency Preparedness and Response

Jan 15, 2013

NNSA Awards Contract for Largest Federal Wind Farm to Siemens Government Technologies, Inc.

Jan 10, 2013

NNSA Holds Radiation Emergency Consequence Management Training in Israel

View All >

          -                 - Curious about NNSA history? Check out our interactive timeline to learn about our historic accomplishments!
            View NNSA Timeline 

          -                 - Working at NNSA
            - In the Spotlight
            - Leadership 

          -                 - NNSA Information
            - (202) 586-5000
            - NNSA Press Office
            - (202) 586-7371
            - 
            - Contact the NNSA
            - Organizational Charts
            - External Resources
            - Locations 

NNSA PoliciesSite MapSite FeedbackDepartment of Energy