Célia Ley of Bertin Technologies looks at the two types of mobile Radiation Portal Monitors (RPM) that they have developed in the ENTRANCE project with CEA List. The first are the High-Speed RPMs, which have achieved another world first in the project and vehicles can now be scanned for radioactive materials at speeds of up to 30 kp/h, which represents a significant increase of the normal accepted speed of 8 kp/h. The second RPMs use new algorithms to detect whether the radiation source is natural or artificial by using full spectra analysis.
