circuit d'épuration

CONT: Le circuit d'épuration joue deux rôles. D'abord, il doit éliminer les produits de corrosion non solubles et solubles ainsi que d'autres impuretés provenant du modérateur. Deuxièmement, il doit éliminer les produits chimiques absorbeurs de neutron non souhaitables (appelés poisons), utilisés pour la régulation du réacteur.

CONT: The purification system has two tasks. First, it must remove insoluble and soluble corrosion products and other impurities from the moderator water. Secondly it must remove unwanted neutron absorbing chemicals (called poisons), used for reactor regulation.
CONT: If this circulating crud is not removed from the HTS [heat transport system], subsequent neutron activation and re-deposition will create radiological problems in the HTS (increased man-rem). An increased purification flow will remove much or all of these products. But, the removal of these materials in the purification circuit will result in high radiation fields around the filters, strainers and IX columns.