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The gas-cooled fast reactor (GFR) represents an alternative to the sodium-cooled fast reactor (SFR) described throughout this book or the lead-cooled fast reactor (LFR) described in Chapter 18. Although many parts of the book are relevant to all fast reactors (e.g., neutronic techniques), the use of a gaseous coolant in the GFR results in certain design and safety considerations that are fundamentally different from other fast reactor systems. This chapter addresses such differences, is focused on historical and modern GFR design features, and provides a review of relevant GFR design considerations, especially as they pertain to safety. |
