The composite bell shield provides gamma and neutron shielding during dry cask operations. The cylinder provides shielding around the transfer cask and above the work platform. Typically, atop the cylinder is a 6” tall and 6” thick ring that reduces shine from the canister lid and annulus gap areas. The bell shield is supported by sitting atop the transfer cask, and can be manufactured for use with any dry cask system. The amount of borated polyethylene, steel, and/or lead can be designed to each site’s individual needs.
NPO has built shield bells for all major US transfer cask manufacturers
NPO shield bells in use