Study of Alpha Induced Reactions on Iridium
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Date
2007-07
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Addis Ababa University
Abstract
Excitation function of (a , xn) ) reaction on Ir -191 (abundance 37.3%) and Ir -193
(abundance 62.7%) were studied for various energy range of alpha particle. The
calculations were done using ALICE-91 computer code, which is based on Geometry
Dependent Hybrid (GDH) model. Various parameters were changed to see the effect on
the excitation functions. The calculated values were compared with experimental result
obtained from available literature. This comparison gives the best-fit parameters viz pld,
exciton number, etc. Further this confirms that at these energies compound nucleus
theory does not satisfy experimental results. There is sufficient proof of pre-equilibrium
decay of the system
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Keywords
Reactions on Iridium