Blog

Tag: Lead Blankets

Reactor Head Flange Shielding

May 3, 2019

TVA Sequoyah needed a way to shield the surrounding area of their reactor head while inspection work was being done. To avoid setting up scaffolding or stand alone lead blanket racks that would take up valuable floor space, NPO designed lead blanket racks that would make use of the stud holes of the reactor head […]

RadVision3D – LaSalle Case Study

May 31, 2018

In the scope of one job, LaSalle Generating Station saved 12 Rem through the use of 3D gamma radiation source mapping and intervention analysis, RadVision3D. The Reactor Water Cleanup valve is an Anchor Darling valve that needed to be breached and have the internals replaced during a refuel outage. It is located in a locked high […]

Core Barrel Shielding

April 11, 2017

In 2013 NPO designed and built a custom Core Barrel Shield for Palisades Nuclear Plant in Covert, MI.  The shielding was implemented in Palisades’ 23rd refueling outage and was a great success.  The story of the project’s success spread in May 2015 when the Palisades plant was recognized during the Nuclear Energy Institute’s best industry practice […]

Carrying Lead Blankets for Fun

November 18, 2016

How many times in your career have you seen someone excited to carry lead blankets?  At “The Combine” hosted by Frontline OCR and the local USMC recruiting office, there were more than you could count.  Frontline OCR’s mission is “To create a race that replicates the demands that our first responders and military personnel experience […]

Saint-Alban Steam Generator Shielding

June 9, 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 […]

Bio-Shield Door Shielding

May 24, 2016

Limerick Generating Station was in need of custom shielding for their bio-shield doors. Even though shielding was already installed, there was still a gap that continued to be a source of dose. NPO worked closely with ALARA Specialist, Joe Bruno, at Limerick to design a 4-piece magnetic set of custom lead blankets. Each piece had […]