Ionization quenching in LSC.
Ionization quench function Q(E) introduces an important correction in the CIEMAT/NIST tracing method. In this paper we present a detailed analysis of the equations used to compute the counting efficiency of 55Fe. The counting efficiency of this radionuclide is very sensitive to the shape and values of Q(E) for this method. We demonstrate that the Birks equation and stopping power are not adequate to obtain low discrepancies between the experimental and computed efficiencies. An empirical procedure to compute accurate Q(E) functions is also given.
Carles
Grau
G
CIEMAT, Instituto de Estudios de la Energia, Avda. Complutense 22, Madrid 28040, Spain.
Gunther
E
E
García
G
G
Malonda
A Grau
AG
D000465:Algorithms; D007504:Iron Radioisotopes / Q000032:analysis*; D018499:Linear Energy Transfer; D008956:Models, Chemical; D015233:Models, Statistical; D011839:Radiation, Ionizing; D011874:Radiometry / Q000379:methods; D015203:Reproducibility of Results; D012588:Scintillation Counting / Q000379:methods*; D012680:Sensitivity and Specificity; D012996:Solutions
D007504:Iron Radioisotopes; D012996:Solutions