College of Science

   The study of the effect of some factors on the human is difficult and complex because of the lack of instruments for measuring eye efficiency. The human eye is an optical organ, its work is similar to the camera work, but the eye can not return the image which it makes, but the camera can return. Producing high quality image by human optical system like other lens system is affected by many parameters, some of them are internal such as aberrations and age, pigmentation.

         Metal-semiconductor (M-S) junctions are prepared in this study by thermal evaporation technique, in which we used indium (In), silver (Ag) and gold (Au) films and aluminum (Al) films. The Al/c-Si/In, Al/c-Si/Ag and Al/c-Si/Au diodes heat treated at different annealing temperatures 303,373 and 473 K.

        A computation investigation on the design of magnetic deflection and focusing system using the synthesis approach of optimization method has been done.