A successful test of a unique SPECT scanner

CVŘ specialists have developed within the research activities for MMV (Material and mechanical properties) unique device SPECT that allows 3D look inside the small diameter of radioactive samples in order of units to tens of mm.

The device can detect areas of increased activity within the specimen, or the centers with significantly reduced activity, indicating the presence of cavern inhomogeneities, cracks, or regions of different chemical composition.

Our specialists have proposed a technical solution not only accurate 3D robotic scanner, but have also developed specialized software for processing dosimetric data. The unique construction of the collimator made in the CVŘ allows to achieve a better resolution than 1 mm3.

After several months of development, debugging and optimizing the structural design of the scanner took place in March 2017 the first trial of 3D scanning. SPECT scanner has been successfully tested on several samples, consisting of a radionuclide 137Cs source with a diameter of 3 mm and 10 MBq activity placed eccentrically inside a homogeneous steel casings of 10 mm thickness. SPECT scanner, which is designed primarily for 3D imaging of activated samples inside a nuclear reactor with activity ranging from 1 MBq to 1 TBq will operate in one of the ten hot cells built in CVŘ within the SUSEN project.