الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The accuracy of the non-steady state diffusion differen
tial equation in predicting the asymptotic reactor period and the excess :Multiplication factor has been assessed using an
exact transport approach. The time dependent Boltzmann
inteMro-diffnrential equation was converted to pseudo steady
state form by assuming that the neutron flux is seperable in
time and space, and its time variation corresponds to the
asymptotic solution of the point model kinetic equation. ’LT1
exact analytical solution for the pseudo steady state integ
ral transport equation was performed using the replication
prop,~rty of its integral kernel. Extensive numerical calcu
lati--ns were performed for a spherical reactor to evaluate
the excess multiplication factor, period-, end the associated
ilex distribution using both the exact transport and approxi
mate diffusion methods. The diffusion theory approximation
was rroved to be more adequate for subcriticalq and critical
than supercritical systems.