الفهرس 
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Abstract
The aim of the work presented in this thesis is to provide a qualified
calculation model suitable for risk assessment of radioactive pollution to
the Suez canal environment.
In the theoritical part, a model developed by J.M. Abril (University
of Seville, Dept. of Applied Physics, Spain) is selected and adapted for
the Suez canal case. This choice is based on the fact that this model is
applied by the same author to study the radionuclide dispersion in the
Tinto and Odiel rivers (in Spain) These rivers have particularities which
exists in Suez canal.
The selected ev.aluation model is adapted for the Suez canal case. A
computer code based on this model is supplied by the IAEA to carry out
this adaptation. The adjustment of the selected model is performed
through the determination of a set of suitable physical parameters such
as: geometry, bathymetry, tidal water elevations, water flow velocities,
... etc. These values are introduced as basic parameters in this
calculation code. Sensitivity analysis is performed to evaluate the
squared velocity correction factor.
In the experimental part, measurements concerning the mechanism
of dispersion of radioactive pollutants in Suez canal is performed. This
work included: injecting Rhodamine dye in Suez canal, following up the
dye cloud, collecting water samples at different times, measuring the
concentrations and finally analyzing the experimental results.
Values
dispersion
measured.
of physical parameters for the Shallufa area such as the
coefficient, distribution coefficient and turbidity are
Therefore, the model is verified through the comparison of
experimentally measured values and computed values of some physical
parameters such as: tidal water elevations, mean water velocity, plume