Zur aufstellung von empfindlichkeitsmatrizen in der γ-scintillationsspektrometrie

Abstract

The use of an inverse response matrix to unfold pulse height distributions gives rise to difficulties which appear in the unfolded spectra as disturbing oscillations. An attempt is made to construct a response matrix with an accuracy as high as possible and to demonstrate in this way the influence of this accuracy on the results of the unfolding procedure in comparison with disturbing sources which furthermore occur. Besides a high number of monoenergetic spectra additional informations will be used from the experimental spectra. The unfolding of pulse height distributions shows, that these inversing method is well suitable to work up continuous energy distributions, even if these spectra are superimposed by a discrete line spectrum. Also the unfolding of spectra with several lines which have a sufficiently high distance in energy each from the other is possible with a sufficient accuracy in many cases.