Seaborg Technologies


Seaborg Technologies is a private Danish startup company working to develop and commercialize molten salt reactors. Founded in 2015 and based in Copenhagen, Denmark, Seaborg Technologies emerged as a collaboration between a small team of physicists, chemists, and engineers with educational roots at the Niels Bohr Institute, CERN, ESS and DTU Center of Nuclear Technologies sharing a common vision of sustainable and cheap nuclear power. Recently Seaborg Technologies and nuclear power have seen increased media interest in Denmark, and the Danish government platform includes a statement about removing barriers to research into thorium-based technologies. Seaborg Technologies is named after the American nuclear chemist and Nobel laureate Glenn T. Seaborg.

The Compact Molten Salt Reactor

The reactor designed by Seaborg Technologies is called the Compact Molten Salt Reactor, CMSR. It is inherently safe, significantly smaller, better for the environment, and inexpensive even compared to fossil fuels.
Conventional nuclear reactors have solid fuel rods that need constant cooling, typically using water under high pressure. In the CMSR, fuel is mixed in a liquid salt that acts as coolant. This ensures it can always be cooled and it cannot melt down or explode. It will simply shut down by itself in case of an emergency.
Unlike other thermal spectrum molten salt reactors the CMSR does not use graphite as a moderator. This enables a more compact design.