e-ISSN:2319-9849 p-ISSN:2322-00 84 RRJCHEM | Volume 6 | Issue 2 | June, 2017 Research & Reviews: Journal of Chemistry INTRODUCTION In recent years, the number of literatures concerning to transmission of various nuclear radiations through nano structured materials has been increased [1-10] . Among them, transmission of X-ray through the Nanoparticles has attracted more attention due to its various industrial and medical applications [11] . Using of these nano particles mainly is for their wonderful chemical, physical and mechanical properties compared to the conventional micro-sized particles [11,12] . Specially, the maximization of sur- face to volume ratio and the highly effcient dispersion properties of the Nano-sized particles made them attractive for further investigations [5,13,14] . A recent study by Noor Azman et al. [14] considered the X-ray transmission properties of WO3 as a fller loading material within the epoxy composites. This research shows a better attenuation ability of nano-sized WO3 from 25 to 35 keV X-ray energies in compared to the micro-sized WO3. This research also indicates that the particle size has not a signifcant role in attenuation prop- erties for the higher X-ray energies (40 to 120 keV). This view is also confrmed by Kunzel and Okuno [12] by testing the micro and nano-sized CuO in a polymer resin for different thicknesses and concentrations. This evidence supports the view that the particle size effect emerges mainly in the low energy ranges and it also revealed that the frst and perhaps the most important advantage of using the nano particles on the X-ray transmission, is their better dispersion properties within the polymer composites in com- parison to micro-sized particles [5,11-14] . Another way of viewing on X-ray transmission is to consider the photoelectron generation property. The photoelectric event dominates for X-ray interaction with low energy ranges and high atomic number [15,16] . The probability of this event can be signif- cantly depends on particle size. One of the most obvious reasons stems from this fact that the number of particles per gram for the same amount of material, increases with decreasing the particle size [11] . As a consequence, the probability of a low energy X-ray photon to be absorbed and generated electrons may be increased. On an Experimental Study of the Electron Generation Property of Thin Gold Films Mehran Vagheian 1* , Shahyar Saramad 1 , Dariush Rezaie Ochbelagh 1 and Dariush Sardari 2 1 Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran 2 Azad University Science and Research Branch, Tehran, Iran Research Article Received date: 26/04/2017 Accepted date: 11/05/2017 Published date: 20/05/2017 *For Correspondence Mehran Vagheian, Amirkabir University of Technology (Tehran Polytechnic), Tehran 14174, Iran. Tel: +982164540 E-mail: mvagheian@aut.ac.ir Keywords: Electron generation property, Thin flm characterization, Deposition rate, Gold flms ABSTRACT In the present study, the effects of the thickness and deposition rate at different X-ray energies on the electron generation property of thin gold flms have been investigated. In order to fnd out the effects of different thickness, thin gold flms with the thickness of 10, 100 and 1000 nanometres at two different deposition rates namely 1 angstrom/s and 1 nm/s have been considered. All the prepared samples have been fabricated using the Physical Vapour Deposition technique (PVD) and characterized by the Energy Dispersive Spectroscopy (EDS), Scanning Electron Microscopy (SEM) and X-Ray Diffraction Technique (XRD). The results all clearly indicate that the yield of electron generation for the deposition rate of 1 angstrom/s is much higher than that those of 1 nm/s. Moreover, the obtained results reveal the superior electron generation property of 100 nm thickness in comparison to the other considered thicknesses.