Export 33 results:
Sort by: [ Author  (Asc)] Title Type Year
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 
Ismail, M., A. Y. Ellithi, and H. Abou-Shady, "EFFECT OF ISO-SPIN AVERAGING AND FINITE RANGE OF THE NN FORCE ON REACTION CROSS SECTION FOR NEUTRON RICH NUCLEI", A new era of nuclear structure physics. Proceedings of the international symposium (NENS03): IAEA - world scientific, pp. 330-331, 2004. Abstract

The optical limit to Glauber theory is used to calculate the reaction cross section, σR, for neutron rich nuclei. In-medium and iso-spin dependence of the effective nucleon-nucleon (NN) reaction cross-section, σNN, are treated correctly assuming both finite and zero range NN interaction. We find that the combined effect of iso-spin dependence and finite range of NN force can increase up to 20% for neutron rich nuclei compared to σR calculated using zero range approximation and constant matter density value 0.16 fm-3 in σNN. The maximum percentage increase is reduced to 13% compared with σR based on free NN cross section

abdul Magead, I., Studies in differential cross section for reactions involving Deformed Nuclei, , Giza, Cairo university, 2009.
Mokhtar, M., E. M. Attalla, H. Abou-Shady, N. A. Deiab, and A. Amin, "Comparative dosimetry of forward and inverse treatment planning for Intensity-Modulated Radiotherapy of prostate cancer", IOSR Journal of Applied Physics, vol. 7, issue 6, pp. 97-106, 2015.
R O Abdel Rahman, Z. E. D. H. A. Abidin, and H. Abou-Shady, "Cesium binding and leaching from single and binary contaminant cement–bentonite matrices", Chemical Engineering Journal, vol. 245, pp. 276-287, 2014. AbstractWebsite

Abstract Binding mechanisms and leaching characteristics of cesium from different cement–
bentonite immobilization matrices were investigated. The effect of Sr presence as a
competitive contaminant in the matrices was studied by investigating the binding and
leaching mechanisms in binary contaminant matrices that contains both Cs and Sr solutions.
Binding investigations aimed to trace Cs binding mechanisms by calculating the distribution
of contaminant and major structural elements aqueous complexes in the mixing solution ...

R O Abdel Rahman, D. H. A. Z. E. Abidin, and H. Abou-Shady, " Assessment of strontium immobilization in cement–bentonite matrices", Chemical Engineering Journal, vol. 228, pp. 772-780, 2013. AbstractWebsite

The feasibility of immobilizing strontium in cement–bentonite matrices was investigated by studying the effect of mineralogical phase development on mechanical and containment performances. Within this context, the chemical composition and physical properties of bentonite were determined. Different cement–bentonite waste matrices were prepared and analyzed using XRD technique to trace the changes in phases during the curing period. The mechanical performance of these matrices was evaluated by measuring the compressive strength throughout their curing period and the containment performance was determined by conducting long-term static leaching test then the experimental results were checked against some regulatory limits. The results indicated that the presence of strontium and bentonite did not lead to formation of new hydrated phases. The mechanical performance of the matrices is acceptable and the enhanced compressive strength was attributed to the progression in the formation of cement hydrated phases and the pozzolanic reaction between bentonite and lime in cement–bentonite matrices. The speciation data and phase structures analysis indicated that Sr2+ containment in cement might be due to Ca substitution in Ettringite structure and cations exchange on Montmorillonite lattice. The mathematical analysis of the long-term leaching results indicated that strontium leaching resulted from a combination of first order reaction and diffusion mechanisms.

Shady, P. H. A., P. E. H. Amin, and P. W. Seif, "The impact of using different fuel densities on the neutronic parameters of Material Test Research (MTR) reactor core", International Journal of Scientific & Engineering Research, vol. 8, issue 9, pp. 475 - 490, 2017. paper_4_impact_of_desnities.pdf
Shady, H. A., Study of elastic scattering of protons on nuclei at intermediate energy, , Giza, Cairo university, 1993.