مجله علوم و فنون هستهای (Nov 2014)
Energy and Angular Distribution Determination of Energetic Nitrogen Ions of Plasma Focus Device SBUMTPF1 by Aluminum Filters Coated on CR-39 Nuclear Track Detector
Abstract
In this study, the energy and angular distributions of nitrogen ions produced in a plasma focus device, SBUMTPF1, were determined using CR-39 nuclear track detectors and the results were compared with those of the polycarbonate track detectors. For this purpose, by the use of the SRIM software, the ranges of nitrogen ions were calculated in aluminum and subsequently by applying the PVD method, layers of aluminum filters of different thicknesses were deposited on the detectors. By the use of the coated films, the anisotropic distribution of nitrogen ions was investigated by the detectors. The variation of density of the ions was also investigated in different ranges of energy. The study of the SBUMTPF1 angular distribution profiles shows a peak value at an angle of 30˚ with respest to the anode axis. The results found to be consistent with those obtained for the polycarbonate track detectors.