Control Materials:

Four common methods have been used or proposed for changing the power or neutron flux in a nuclear reactor; every includes  the  temporary  further  or removal of (a) moderator, (b) fuel, (c) reflector, or (d) a neutron absorber or poison. This lesson discusses the materials used as poisons within a reactor plant.

 STATE the five general poisons used as control rod material.

 IDENTIFY the advantage(s) and/or disadvantage(s) of the five general poisons used as control rod material.