ABSTRACT
A study has been made of X- and gamma-ray emission from 237Np in equilibrium with 233Pa using the full response function method. This analysis process is characterised by photon spectrometry in which the entire spectrum is modelled in a pseudo-empirical way by means of elementary functions describing the total absorption and escape peaks, the Compton diffusion internal and external to the detector and the peaks resulting from detection of internal conversion electrons. This method has been applied to determine the L X-, K X- and gamma-rays emission probabilities in 237Np and 233Pa decay studies.
Subject(s)
Algorithms , Models, Theoretical , Neptunium/analysis , Protactinium/analysis , Spectrometry, Gamma/methods , Complex Mixtures , Radioisotopes/analysis , Reproducibility of Results , Sensitivity and SpecificityABSTRACT
Following international EUROMET Project No. 416 and our recent measurement of the emission probabilities of the main gamma-rays of 237Np in equilibrium with 233Pa, a complementary work has been undertaken to determine the photon emission probabilities of the KX-rays associated with the decay of these nuclides. Two different analysis methods have been used: the KX-rays region was analyzed by fitting both Voigt and full response functions. Photon emission probabilities were determined with a relative uncertainty of about 2%.
