الفهرس 
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Abstract
Application of polymer in various industrial areas is of immense importance. It is being characterized by solubility, strength, high modulus, corrosion resistance, electronic properties, as well as low cost. These advantages enabled its employment in a wide range of applications ranging from the daily usage to the very high technology, engineering, and medicine. In many of these applications, it becomes necessary to enhance the surface and bulk properties of polymers. Various irradiation techniques with a variety of radiation types such as gamma, ultraviolet, and ion implantation have been found to dramatically modify the composition and structure of the polymer, due to disruption of original chemical bonding causing many complex effects.
So, this thesis aims to select some polymeric materials that have potential interest in both the nuclear track detection and industrial applications and also to study of the effect of high (e.g. ion beam) and low (e.g. γ–rays) linear energy transfer (LET) radiation on structural destruction of polymer target along with its manifestation in physical properties. The effect of electronic energy loss (Se) and nuclear energy loss (Sn) of different ions on polymer modification is also investigated by SRIM program.
The polymers namely Poly-Allyl-Diglycol-Carbonate (CR-39) and Makrofol (MK-DE) were selected and irradiated with different doses of gamma rays and ion beams. Different properties will be studied after irradiation of the selected polymers. Among these, the optical properties, chemical structural properties, electrical or dielectric properties, mechanical properties and some surface properties such as wettability and roughness of the surface after irradiation with ion beam.