New Experimental k0 and Related Data for Generalized Activation/Decay Cases Implemented in the "Kayzero" Software Package

Abstract

A revision is made of some activation-decay types in k ₀-NAA, aiming at the removal of (1) the inconvenience that a long-lived daughter radionuclide could in some instances only be measured after complete decay of a shorter-lived mother, and (2) the simplification that in some cases the measured gamma-ray emitted by the daughter radionuclide is not significantly contributed to by the mother. In view of this, new experimental and generalized k ₀'s and related data [Q ₀, k ₀(m)/k ₀(g), etc.] for some analytically relevant activation-decay cases are presented for implementation in an updated version of the "Kayzero" software package. These cases are: ^60mCo-⁶⁰Co, ^104mRh-¹⁰⁴Rh, ^109mPd-¹⁰⁹Pd-^109mAg, ^122mSb-¹²²Sb, ^134mCs-¹³⁴Cs, ^199mPt-¹⁹⁹Pt-¹⁹⁹Au. For completeness, recent data for two additional cases are also included: ^80mBr-⁸⁰Br, ^124m2Sb-^124m1Sb.