This is a sole-source federal contract award from the National Institutes of Health (NIH) to Mirion Technologies (Canberra), Inc. for the procurement of a Broad Energy Germanium (BEGe) detector and an external cooling feature for a whole-body counter (WBC) used by the NIH's Division of Radiation Safety (DRS). The contract, valued at $82,247.60, is a firm-fixed price purchase order with an ultimate completion date of June 14, 2023. Mirion Technologies (Canberra), Inc. is the only known responsible source for these proprietary accessories that are compatible with the existing Mirion Accuscan WBC equipment used by DRS to evaluate researchers' uptake of radioactive material. The requirement is driven by the NIH's Nuclear Regulatory Commission (NRC) license obligations. This award is not associated with a larger contract vehicle, and no set-aside was used.