Imaging of heavily shielded sources

With our Compton Camera, thanks to it’s high spatial resolution and good signal/noise ratio, it is possible to image heavily shielded sources. In this case we are observing a high activity (1GBq) ¹³⁷Cs source used for level gauging. The source is shielded by 20 cm of lead. In 10 minutes using the 80 photons on a total 20.000 selected on the ¹³⁷Cs peak (662 +/- […]

Wall contamination mapping using a binocular camera

The binocular camera with its dual head configuration allows to estimate the true distance to a radiative source using gamma emission triangulation. This opens the way to quantitative imaging of contamination. A first trial has been done in a decommissioned power plant. The maximum activity on the wall was 0,2uSV/h (red spot). The gamma FOV (76°) is slightly smaller than the optical image (90×90). The […]

Natural radioactivity imaging

Our camera has such a good Signal/noise that it can image objects using their natural radioactivity. Here is an image of a plate of standard glass done with a pose of one day This view is done using the gamma lines from Actinium 228 from Thorium 232 decay chain. Thorium is an impurity in sand. The second image is done using the 1460 KeV gamma […]

Room contamination census using Binocular camera (360°)

Our camera can be used on a rotating tripod to create a panoramic 360° view of a room to track contamination and estimate dosimetry with minimum manpower involved. The complete scan solution has been developed in collaboration with SBS interactive with the help of Grand EST region. This view has been obtained in Daher waste reprocessing plant in France. The Image was obtained with all […]