All existing HTGR reactors use helium coolant. The reactor core can be either a "prismatic block" (reminiscent of a conventional reactor core) or a "pebble-bed"...

plate-based fuel assemblies or prismatic blocks, which allows for better coolant circulation than traditional fuel assemblies. The reactors are intended for use...

(1973-1974) High & Very-high temperature reactor (graphite moderated, Helium cooled) Prismatic block reactor Dragon reactor (1964-1975) Peach Bottom Atomic Power...

envisions an outlet temperature of 1,000°C. The reactor core can be either a prismatic-block or a pebble bed reactor design. The high temperatures enable applications...

Electric. It is a helium cooled, graphite moderated reactor and uses TRISO fuel compacts in a prismatic core design. The power is generated via a gas turbine...

locations in the reactor. This is known as the "prismatic" design. While the Dragon reactor explored the prismatic design, the West Germany developed an alternative...

that uses an isotope of thorium, 232 Th , as the fertile material. In the reactor, 232 Th is transmuted into the fissile artificial uranium isotope 233 U...

properly designed reactor. Two such reactor designs are the prismatic-block gas-cooled reactor (such as the GT-MHR) and the pebble-bed reactor (PBR). Both of...

as a replacement for uranium as nuclear fuel in nuclear reactors, and several thorium reactors have been built. Thorium is also used in strengthening magnesium...

regions of typical prismatic standard fuel element or upper reflector block geometries of typical Very High Temperature Reactors (VHTR) in the limiting...