Effect of gamma doses on the optical parameters of Se76Te15Sb9 thin films

Research Abstract
The dependence of the absorption coefficient on the photon energy was determined as a function of radiation dose for Se76Te15Sb9 thin films. The indirect optical energy gap was found to decrease from 1.257 to 0.664 with increasing the radiarion dose from 10 to 250 krad. The dependence of the refractive index on the radiation dose has been discussed.
Research Authors
A.Abu El-Fadl, A.S. Soltan, A.A. Abu-Sehly
Research Department
Department of physics
Research Journal
Journl of physics and Chemistry of Solids
Research Member
Abdel-Hamid Abu-Eladab Drawish Abu-Sehly
Research Pages
1415-1421
Research Publisher
Science Direct
Research Rank
1
Research Vol
68
Research Year
2007

Effect of gamma doses on the optical parameters of Se76Te15Sb9 thin films

Research Abstract
The dependence of the absorption coefficient on the photon energy was determined as a function of radiation dose for Se76Te15Sb9 thin films. The indirect optical energy gap was found to decrease from 1.257 to 0.664 with increasing the radiarion dose from 10 to 250 krad. The dependence of the refractive index on the radiation dose has been discussed.
Research Authors
A.Abu El-Fadl, A.S. Soltan, A.A. Abu-Sehly
Research Department
Department of physics
Research Journal
Journl of physics and Chemistry of Solids
Research Member
Abdel-Moniem Sayed Ahmed Sultan
Research Pages
1415-1421
Research Publisher
Science Direct
Research Rank
1
Research Vol
68
Research Year
2007

Effect of gamma doses on the optical parameters of Se76Te15Sb9 thin films

Research Abstract
The dependence of the absorption coefficient on the photon energy was determined as a function of radiation dose for Se76Te15Sb9 thin films. The indirect optical energy gap was found to decrease from 1.257 to 0.664 with increasing the radiarion dose from 10 to 250 krad. The dependence of the refractive index on the radiation dose has been discussed.
Research Authors
A.Abu El-Fadl, A.S. Soltan, A.A. Abu-Sehly
Research Department
Department of physics
Research Journal
Journl of physics and Chemistry of Solids
Research Member
Abdel-Aziz Abo Elfadl Abdel-Aziz
Research Pages
1415-1421
Research Publisher
Science Direct
Research Rank
1
Research Vol
68
Research Year
2007

Radiative effects in natural convection flows

Research Abstract
A regular perturbation analysis is presented for the radiative effects on the following laminar natural convection flows with temperature dependent viscosity
Research Authors
M.A.MANSOUR, R.S.R.GORLA
Research Department
Department of Mathematics
Research Journal
Int,J.Therm. Sci.
Research Member
Mohamed Ahmed Mansor Abd Allah
Research Pages
664-673
Research Rank
1
Research Vol
38
Research Year
1999

- Iso-conversional kinetic study of non-isothermal crystallization of Se89In6Pb5 chalcogenide glass

Research Authors
A.y.Abdel-latief, M.A. Abdel-Rahim, A.Gaber, Mohamed N. Abdel-Salam
Research Department
Department of physics
Research Journal
Accepted to be published in Egyptian journal of Solids (2015).
Research Member
Mostafa Abdel-Naiem Rahim Hussein
Research Rank
1
Research Year
2015

- Iso-conversional kinetic study of non-isothermal crystallization of Se89In6Pb5 chalcogenide glass

Research Authors
A.y.Abdel-latief, M.A. Abdel-Rahim, A.Gaber, Mohamed N. Abdel-Salam
Research Department
Department of physics
Research Journal
Accepted to be published in Egyptian journal of Solids (2015).
Research Member
Abdel-fatah Jaber Mohamoud Abd Allah Elbos
Research Rank
1
Research Year
2015

- Iso-conversional kinetic study of non-isothermal crystallization of Se89In6Pb5 chalcogenide glass

Research Authors
A.y.Abdel-latief, M.A. Abdel-Rahim, A.Gaber, Mohamed N. Abdel-Salam
Research Department
Department of physics
Research Journal
Accepted to be published in Egyptian journal of Solids (2015).
Research Member
Atta Yousef Abdullahtif Mohamed
Research Rank
1
Research Year
2015

Combined convection in non-Newtonian fluids along a nonisothermal vertical plate in a porous medium

Research Abstract
The problem of combined convection from vertical surfaces in a porous medium saturated with power -law type non-Newtonian fluids along ba non-isothermal vertical plate is investigated
Research Authors
M.A.MNansour, R.S.R.Gorla
Research Department
Department of Mathematics
Research Journal
Int. J. of Numerical Methods for Heat&Fluid Flow
Research Member
Mohamed Ahmed Mansor Abd Allah
Research Pages
163-178
Research Rank
1
Research Vol
10
Research Year
2000

Radiative Effect on the Longitudinal streamlines of a Semi-Infinite Plate by a Viscoelastic Fluid with Heat Transfer

Research Abstract
A numerical analysis iS made of the dynamic boundary layer and the thermal radiation boundary layer at a semi -infinite plate longitudinally streamlined by viscoelastic
Research Authors
M.A.MANSOUR
Research Department
Department of Mathematics
Research Journal
Astrophysics and Space Science
Research Member
Mohamed Ahmed Mansor Abd Allah
Research Pages
177-182
Research Rank
1
Research Vol
168
Research Year
1990

Forced convection-radiation interaction heat transfer in boundary -layer over a flat plate submersed in a porous medium

Research Abstract
The interaction nof forced convection and thermal radiation during the flow along a flat plate in a porous medium of a variable viscosity is used
Research Authors
M.A.MANSOUR
Research Department
Department of Mathematics
Research Journal
Applied Mechanics and Engineering
Research Member
Mohamed Ahmed Mansor Abd Allah
Research Pages
405-413
Research Rank
1
Research Vol
2 (3)
Research Year
1997
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