TGeoMixture and TGeoElement

ROOT documentation and source code is somewhat unclear on the subject of the relative abundances / fractions of elements and mixtures:

void TGeoMixture::AddElement(TGeoElement *elem, Double_t weight);
The second parameter is stat.weight (molar fraction) or fraction by weight?

void TGeoElement::AddIsotope(TGeoIsotope *isotope, Double_t relativeAbundance);
the relativeAbundance should be provided in molar of weight fractions?

Thank you,
Andrey

Hi Andrey.
TGeoMixture::AddElement(TGeoElement *elem, Double_t weight) // here weight is fraction by weight
void TGeoElement::AddIsotope(TGeoIsotope *isotope, Double_t relativeAbundance); // here relativeAbundance is also a weight fraction

Best, Andrei

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.