Saint-Alban Steam Generator Shielding

Thursday, June 9th, 2016

EDF Saint-Alban plant, located in Saint-Maurice-l’Exil, France, collaborated with NPO Europe to address a few opportunities for shielding the steam generators during sludge lancing operations. Saint-Alban wanted to reduce shielding installation and removal time from the benchmark of 5.5 hours, reduce total project dose from 476 mRem, and remove the physical clutter of shielding/scaffolding as much as possible to provide a better work environment. With NPO’s custom fit magnetic lead wool blankets, Saint-Alban was able to improve in every area of focus. They experienced an overall 60% estimated dose savings and eliminated the need for scaffolding installation all together. Below is a table detailing the dose reductions as well as pictures of the before and after with NPO blankets.

Table

Before and After

Shielding