Yes, with standardized work-issued dosimeters, training, and strict obedience to policies, you will reduce false positives. They'll still happen, though. Some t

Yes, with standardized work-issued dosimeters, training, and strict obedience to policies, you will reduce false positives. They'll still happen, though. Some types of dosimeters will read positive if exposed to heat or sunlight. Some are sensitive to oils or dirt. One nuclear waste disposal facility had false positive rates around 5% per quarter (http://www.osti.gov/bridge/product.biblio.jsp?osti_id=515496 http://www.osti.gov/bridge/product.biblio.jsp?osti_id=515496). They eventually found the lights in their building to be a major cause. Now take that information and extrapolate it to using dosimeters in every airport in the nation. Even if the TSA deployed dosimeters as competently as a nuclear waste disposal facility, they would still get so many false positives that the dosimeters would be useless.