B-10 Enriched Boric Acid for use as a chemical shim for excess neutron absorption in the primary circuit of PWRs using high burnup or MOX fuel cores. In these PWRs neutron absorption of natural Boric Acid is insufficient. Solubility of Boric Acid limits the boron concentration in primary circuit water to be used as a neutron poison. Today more and more enriched Boric Acid (95 % enriched in 10B) is used by NPPs.
Asia, Canada, Latin America, USA