TY - JOUR
ID -
TI - Theoretical calculation of internal conversion coefficients for multipole transitions in Sr-88 nucleus الحساب النظري لمعاملات التحول الداخلي للأنتقال متعدد الأقطاب لنواة 88-Sr
AU - Ali A. Alzubadi علي عبد اللطيف كريم الزبيدي
AU - Ali K. Abood علي خالد عبود
PY - 2012
VL - 10
IS - 19
SP - 47
EP - 53
JO - Iraqi Journal of Physics المجلة العراقية للفيزياء
SN - 20704003 2664554
AB -
Internal conversion coefﬁcients (ICC) and electron–positron pair conversion coefﬁcients (PCC) for multipole transition of the core nucleus 88Sr have been calculated theoretically. The calculation is based on the relativistic Dirac–Fock (DF) solutions using the so called ‘‘Frozen Orbital’’ approximation, takes into account the effect of atomic vacancies created in the conversion process, covering a transition energies of 1–5000 keV. A large number of points were used to minimize any errors due to mesh-size effects. The internal conversion coefﬁcients display a smooth monotonic dependence on transition energy, multipolarity and atomic shell. Comparing the values of PCC to ICC, it is interesting to note, that the energy dependence of PCC is monotonically increasing and ICC is decreasing with the transition impulses momentum. Resonance minima in the energy dependence of ICCs for the ns shells L1, M1 and N1 at E2–E5 transitions have been also observed.
ER -