Experience with checking potentially contaminated materials released to the environment and testing of the measuring instruments used

Several systems with large area plastic scintillators were tested, which are used to avoid the undesirable and illegal transport of radioactive materials especially at border crossings, in metallurgical works and in plants processing metal scrap, were tested. Measuring equipment with germanium detectors, which is used for check of material released from the Dukovany Nuclear Power Plant, was also tested. The detection possibilities of a chamber with plastic scintillators, for the use during checking of materials released to the environment, were investigated.