Kinetic neutron energy of 0.000…0.025 eV

Slow or cold neutron / moderated neutron spectrum

Thorium (Th)

Naturally-occurring, slightly radioactive metal, three times more abundant than uranium

Tristructural isotropic (nuclear fuel)

TRISO fuel assembly arrangement in hexagon form

Tristructural isotropic (nuclear fuel)

Consists of movable spherical elements of tennis-ball size called pebbles

Tristructural isotropic (nuclear fuel)

Fuel elements consisting of prismatic blocks