O. Sanogo1 , K. Yamba1
1Centre National de la Recherche Scientifique et Technologique (CNRST), Ouagadougou, Burkina Faso
This work focuses on detections of La-140 and Ba-140 from radionuclide particulate stations of the International Monitoring System (IMS). These two isotopes are relevant radionuclides of CTBT and are sometimes detected with abnormal concentrations. The mapping of this background and the analysis of their time series level is a helpful tool than can be used to characterize the activity background of both parent-daughter radionuclides in the world.