Does anyone have any information about the radiation effects on crew in the Canadair CP-107 Argus? I know a person who was a navigator on board the Argus and has now been diagnosed with a Brain Tumor. The main environmental factor is radiation. I know they used radar on board to detect submarines. How well was it sheilded? How much exposure did the crews receive? Was the exposure tracked? Have any studies been done to check for increased cancer risk on the flight crews?