Resume
New Portal Monitor Systems to Ensure the Safety of the Population
Ing. Lubomír Gryc, National Radiation Protection Institue (SÚRO, v.v.i.)
Ing. Tomáš Grísa, Ph.D., NUVIA, a.s.
Plastic detectors have been used extensively as radiation monitoring portals for many years. Stationary large-area detectors with a length and width of the order of up to 100 centimeters and a thickness of units of centimeters are mainly used for vehicle inspection. Smaller detectors can be used for other applications such as scanning persons heading for mass events, etc. Although plastic detectors have spectrometric properties in the detection of gamma radiation they cannot be used directly to identify nuclides, but they are very suitable as signal detectors, e.g. for monitoring passers-by. The paper describes the developed detection systems based on plastic detectors, and is focused on covert monitoring, both static and dynamic (moving vehicles equipped with detection technology), fixed or mobile location. The fact that the developed devices do not disturb the local character of the environment and are placed in already used devices the use of those is more efficient and natural with regard to the behavior of persons present. Thus, the new detection systems will facilitate the activities of security forces such as the police, fire brigade, customs administration, security agencies but also in other places where there is an accumulation of large number of persons, such as airports, railway stations, subways, stadiums, etc.
Keywords: Terrorism, portal monitors, radiation, public safety.