The present work represented to the new idea techinque of imaging material through X-ray emitted from laser produced plasma, here, the plasma intensity in uv-visible region spectrum was measurment from the interaction of the 1.06μm of nedumium-glass laser pulse duration of energy 4J, with five target laser: Al, Cu, C, Pb and Stainless Steel(St.St). Astudy of the X-ray emission intensity as a function of laser produced plasma density and surrouding pressure has been a complished using a high sensitive photon detection and counting technique assoicated with an X-ray intensifying screen whose function is based on X-ray florescence. the stainless –stell target was found to have the highest plasma emission intensity, and as a result it has higher X-ray emission intensity. the results show that the plasma X-ray emission intensity is increased with decreasing surrouding pressure, while this emission intensity is increased with increasing the laser power density. In order to study the spatial scanning of transmitted plasma X-ray intensity and study the factors affecting the x-ray imaging process, a special designed Cu specimen of varying thickness was used. The spatial scanning of transmitted x-ray emission intensity shows a comparative picture to the Cu specimen from the recorded x-ray intensity, in which it decreases at thicker region acorrding to lamberts absorbtion law.
The research aims to study the effect of zinc oxide nanoparticles and Kevlar fibres on the absorption property of composite materials consisting of epoxy resins and phenol formaldehyde in different proportions. The results showed: Epoxy resins are not absorbed without adding phenol formaldehyde, which means an increase in the absorption property with an increases the proportion of phenol formaldehyde increases. The fibre strengthening also increases the absorption, so Kevlar with fibres gave the highest absorption; However, the absorption property decreases when the compounds are enhanced with zinc oxide nanoparticles as compared to the effects seen in the non-reinforced compounds.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.