ABSTRACT
High-temperature gas reactor (HTGR) development has continued over half a century during which the reactors listed in Table 10.1 have been built and operated. The development at the moment is focused on the next-generation commercial designs, alternately called very high-temperature reactor (VHTR), for a range of economic applications, of which one that promises to exploit the highest potential of the HTGR is the production of hydrogen.
