Science and Technology of Nuclear Installations / 2009 / Article / Fig 1

Review Article

Gas-Cooled Fast Reactor: A Historical Overview and Future Outlook

Figure 1

The 𝜂 -factor for U-233, U-235, Pu-239, and Pu-241. Made with the JANIS data viewer (, based on JEFF-3.1 data. Note that U-235 has the lowest 𝜂 of all isotopes in both the thermal and the fast range. For Pu-239, the breeding potential rapidly increases above 50 keV.

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