In FIG. 23, the reflectors 2308A, 2308B, 2308C are in fluid communication allowing liquid reflector material to be circulated around the reactor core 2304. Flow of the reflector material is illustrated in FIG. 23 by the large, gray arrows 2334. In the embodiment shown, reflector material flows into reactor 2300 through an inlet in the vessel head 2338 and then along the interior surface of the side of the containment vessel 2318 in a reflector channel. The reflector channel then follows the bottom of the containment vessel 2318 before making a U-turn and rising to flow adjacent to the bottom of the reactor core 2304. The reflector material then flows up through the inner reflector 2308C and into the upper reflector 2308A from which it can be removed at a central location via an outlet in the vessel head 2338, as shown, or recirculated to the interior surface of the containment vessel 2318.
