Bases for the correct determination of resonance integrals of reactions leading to isomeric states: application to some reactions induced on zinc

The problems related with the departures from the ideal behaviour of the epithermal component of the neutron spectrum are discussed, in connection with the measurement of resonance integrals. The characteristics of the methods for the measurement of the α parameter are commented and the bases of a new method for the determination of mean effective resonance energy, developed at the authors' laboratory, are briefly described. On these grounds, the application to the correct measurement of the resonance integrals of 68Zn(n,γ)69mZn, 70Zn(n,γ)71Zn and 70Zn(n,γ)71mZn is presented

Determination of the probability for locating peaks by computerised peak location methods in gamma-ray spectra as a function of the relative peak area uncertainty

22nd International Confeence on Radionuclide Metrology and its Applications; Salamanca, 2019

Determining the probability of locating peaks using computerized peak-location methods in gamma-ray spectra as a function of the relative peak-area uncertainty

The probabilities of locating peaks with a high relative peak-area uncertainty were determined empirically with nine types of peak-location software used in laboratories engaged in gamma-ray spectrometry measurements. It was found that it is not possible to locate peaks with a probability of 0.95, when they have a relative peak-area uncertainty in excess of 50%. Locating peaks at these relatively high peak-area uncertainties with a probability greater than 0.95 is only possible in the library-driven mode, where the peak positions are supposed a-priori. The deficiencies of the library-driven mode and the possibilities to improve the probabilities of locating peaks are briefly discussed. © 2019 Elsevier Lt