Determination of the 241Am activity in real contaminated slag

One of the main tasks of the EMRP IND04 MetroMetal project “Ionising Radiation Metrology for the Metallurgical Industry” was to develop sets of reference sources in various matrices such as cast steel, slag and fume dust for the calibration of the gamma spectrometric detector prototypes developed in the frame of the project. This work is focused on the characterisation of real contaminated slag material with 241Am using the transmission measurements in combination with Monte-Carlo simulations. The method and the results are presented and discussed.