Holtec International’s Device for Reactivity Mitigation (DREAM) insert provides a robust and economical alternative to moderate fuel reactivity and can be implemented on a relatively expedited schedule, without replacing the existing racks. Installing DREAM inserts in the fuel storage pool allows a plant to recover the criticality safety margins lost due to neutron absorber degradation or the enhanced reactivity of fuel following a power uprate. The DREAM insert serves to replace or augment the neutron attenuation function of the existing racks. DREAM inserts use Metamic® as the primary material of construction.
