Application of area monitors and scintillating detectors in the development of CBRN defense reconnaissance vehicles

This study describes the use of ionizing radiation detectors in a Brazilian Army operational vehicle, used in area monitoring actions based on the occurrence of a radiological event. Two scintillating detectors, NaI and LaBr3, were used to carry out measurements of notes in the field, simulating the position of the detector in a vehicle for different distances, in order to intercompare the energy spectra obtained in each measurement system. The CTEx region was chosen to carry out the measurements, where information on meteorological conditions was collected to verify the conditions to which the experimental apparatus will be submitted. The results suggest both the scintillating detector NaI and LaBr3 can be used in radiological emergency response vehicle, offering satisfactory responses in the detection of gamma radiation. However, the NaI detector was chosen considering the wide network of technical assistance and its low operational cost. The relevance of this investigation shows the importance of planning responses in emergency situations and the influence of effective instrumentation in the measurement processes. (author)