Speaker
Mr
Bonginkosi Zikhali
(University of wersten cape physics)
Description
Internal Conversion (IC) is an important component of most nuclear decay schemes, in
order to balance a decay scheme correctly, one need to know IC contribution to each
transition [1]. The knowledge of the IC processes is of importance for the evaluation of
absolute and relative radiation strengths. Furthermore the study of correlations involving IC
offered the possibility to determine the parity change in a transition [2].
Over the last decade, tabulated internal conversion coefficients (ICC) values have differed
significantly from one calculation to another by a few percent. Such differences cannot be
tolerated in some applications. The best agreement data was achieved with a version of
Dirac-Fock method calculation that ignored the atomic vacancy created by the conversion
process [3]. The problem of whether or not to take into account the hole in the atomic shell
after conversion has been considered in a number of papers both with respect to the validity
of the ICC theory and to the quality of agreement between that theory and experimental
data [4, 5].
In this work experimental ICC for nuclei across Z≈50 are determined in two different
methods and compered to the two theoretical methods.
Apply to be<br> considered for a student <br> award (Yes / No)?
yes
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
PHD
Primary author
Mr
Bonginkosi Zikhali
(University of wersten cape physics)
Co-authors
Mr
Abraham Avaa
(University of Witwatersrand)
Mr
Lumkile Msebi
(Student)
Mr
Maluba Vernon Chisapi
(iTL/Stellenbosch)
Dr
Pete Jones
(iThemba LABS)
Mr
Robert Lindsay
(University)
