9 Checking and measuring apparatus and instruments, namely, radiation-measuring instruments, particularly for the topographical, radiological location and characterization of radiation sources, particularly in real time, for the recovery and mapping of an environment, installation, workshop, for the positioning, identification, quantification of sources in the environment, installation, workshop thus reconstituted; sensors, namely radiation-measuring sensors, for monitoring and measuring particularly for the topographical, radiological location and characterization of radiation sources; apparatus and instruments, namely, radiation detectors and radiation-measuring instruments, for processing control and measurement information, particularly for the topographical, radiological location and characterization of radiation sources, particularly in real time, for the reconstitution and mapping of an environment, installation, workshop; downloadable and recorded software for processing control and measurement information, in the nature of radiation mapping, particularly for the topographical, radiological location and characterization of radiation sources, particularly in real time, for the reconstitution and mapping of radiation in an environment, installation, or workshop