analogelectronicsystems analogintegratedcircuits analogintegratedcircutits calibration calorimetry circuitsintégrésanalogiques congresses cosmicrays customsadministration departmentofhomelandsecurity designandconstruction detection détecteursdeparticules electromagneticinteractions energy engineering equipmentandsupplies experiments instrumentation instruments insturments ionizingradiation measurement medical medicalphysics mesure methods nationalsecurity nuclearastrophysics nuclearmedicine nuclearphysics nuclearreactions nuclearterrorism particleacceleration particles(nuclearphysics) particletracks(nuclearphysics) physics portsofentry prevention quantumtheory radiation radiationmeasurement radiationmonitoring radiationwarningsystems radioactivesubstances radioactivity radioactivité radiology radiometry radiométrie rulesandpractice sci051000sci024000med080000 science securitymeasures smuggling systèmesanalogiques technique terrorism testing unitedstates wn650n279ca1991