Preparation of Gold Target through Electron Vapor Deposition and 'Paras' the Rutherford Back Scattering Experimental setup @ IUAC


Sarvesh Kumar , Inter University Accelerator Center, Aruna Asaf Ali Marg, New Delhi.; Tulika Sharmay, Amity Institute of Applied Sciences, Amity University, Noida, (U. P.); Pranav Bhardwaj, Department of Physics and Astrophysics, University of Delhi, New Delhi; Avnee Chauhan, Amity Institute of Applied Sciences, Amity University, Noida, (U. P.); Shruti Kapoor, Amity Institute of Applied Sciences, Amity University, Noida, (U. P.)


Rutherford Back Scattering, Electron Vapor Deposition


Rutherford Backscattering Spectrometry (RBS) is a widely used method for the surface layer analysis of solids. Lord Ernest Rutherford first used the backscattering of alpha particles from a gold film in 1911 to determine the fine structure of the atom, resulting in the discovery of the atomic nucleus. RBS includes all types of elastic ion scattering with incident ion energies in the range 500 keV – several MeV. Usually protons, 4He, and sometimes lithium ions are used as projectiles at backscattering angles of typically 150– 170◦. Different angles or different projectiles are used in special cases. Rutherford backscattering spectroscopy is employed to detect the impurity present in target material and to test the amount and type of impurity present in any target sample to be used in any experiment of atomic physics/ nuclear physics or of material science. The detection of these impurities before conduction of any experiment is essential as the presence of impurity in target sample may hamper the results of the experiments. Thus, although being a traditional concept the use of Rutherford backscattering spectroscopy still prevails. One requires a target material to learn the working principle of Rutherford backscattering spectroscopy. INTER UNIVERSITY ACCELERATOR CENTER (IUAC) provides the facility for fabrication of the target and its analysis. This paper includes the fabrication of gold target of thickness 300mm and its analysis using Rutherford backscattering spectroscopy.

Other Details

Paper ID: NCILP018
Published in: Conference 1 : NCIL 2015
Publication Date: 16/10/2015
Page(s): 72-80

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