A surgical training apparatus and method are provided simulating a patient having background radiation emissions level and at least one concentrated source of radiation emissions. The apparatus includes a plurality of notches in a lower base portion for receiving test sources, and a cover for overlaying the lower base during the training procedures. Identification indicia is provided within each of the notches and on the cover to correlate the notch position with the closed cover surface. A radiation detection device is used to scan the surfaces in training surgeons for radiation identification and localization techniques.