Reflectors for molten chloride fast reactors

A reflector assembly for a molten fuel nuclear reactor comprising:

• a plurality of modular reflector structures disposed adjacent to one another and positioned circumferentially around a longitudinal axis to at least partially encapsulate a reactor core in a substantially cylindrical shape;
• at least one tank section disposed within each of the plurality of modular reflector structures;
• reflector material held within the at least one tank section configured to reflect fission born neutrons back to a center of the reactor core;
• and
• a support structure configured to hold the plurality of modular reflector structures in place within the molten fuel nuclear reactor, wherein the support structure includes a substantially cylindrical top plate and a substantially cylindrical bottom plate, the plurality of modular reflector structures disposed between the top plate and the bottom plate, wherein the support structure further includes a plurality of ribs extending from the substantially cylindrical top plate along the longitudinal axis, and wherein the plurality of circumferentially spaced ribs also extend in a radial direction from an outer circumferential surface of the plurality of modular reflector structures towards an inner circumferential surface of the plurality of modular reflector structures.