Dose Rate Calculations for the 2-MCO/2-DHLW Waste Package

The objective of this calculation is to determine the dose rates on the external surfaces of the waste package (WP) containing two Hanford defense high-level waste (DHLW) glass canisters and two Hanford multi-canister overpacks (MCO). Each MCO is loaded with the N Reactor spent nuclear fuel (SNF). The information provided by the sketches attached to this calculation is that of the potential design for the WP type considered in this calculation. The scope of this calculation is limited to reporting dose rates averaged over segments of the WP radial and axial surfaces and of surfaces 1 m and 2 m from the WP. The results of this calculation will be used to assess the shielding performance of the 2-MCO/2-DHLW WP engineering design.

The planning requirements that apply to the generation of this calculation have been identified in the development plan DOE SNF Analysis Plan for FY 2000 (CRWMS M&O [Civilian Radioactive Waste Management and Operator Contractor] 2000a). This calculation is performed and documented according to AP-3.12Q, Calculations.