Design modifications to the HS Safkeg 3977A Package to allow transportation of Molybdenum 99 contents

The Safkeg-HS 3977A package is a general-purpose container for the transport of non-fissile nuclides and limited quantities of fissile nuclides as specified under NRC general licences, for non-exclusive and exclusive use. The package has been designed for transportation of a variety of solid, liquid or gaseous contents by road, rail, sea and air. The package was originally designed in 2008 and tested in 2010 to provide substantiation for the initial license application. The Safkeg-HS 3977A consists of a single resealable containment vessel, (design no 3978) fabricated from stainless steel with encased depleted uranium shielding, carried within insulating cork packing in an outer stainless-steel keg, (Design No 3977).This initial package design was successfully licenced by the United States Regulatory Authority, the USNRC, confirming that the package met the requirements of 10 CFR 71 and the IAEA Regulations for the Safe Transport of Radioactive Material.Further to this licence award, the Safkeg-HS 3977A package has been subject to a further design and licensing modification to allow for the optimised transportation of Molybdenum-99 contents in liquid form.This poster presentation summarises the design and licensing challenges introduced by the incorporation of Mo 99 contents in liquid form, describing how these were overcome, through a combination of a bespoke shielded insert design and the associated analysis which culminated in a further successful licence award upon the Safkeg HS 3977A package.