Energy and Angular Distributions of High-Energy Nitrogen Ion of Plasma Focus Device SBUMTPF1 by Aluminum Filters Coated on Polycarbonate Nuclear Track Detector

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• 作者：Behjat Ghasemi (1)
  Hamed Rouhi (1)
  Fereydoun Abbasi Davani (1)
  Zahra Shahbazi Rad (1)
  
• 关键词：Plasma focus device ; Polycarbonate detector ; Energy and angular distribution ; PVD ; SRIM
• 刊名：Journal of Fusion Energy
• 出版年：2013
• 出版时间：December 2013
• 年：2013
• 卷：32
• 期：6
• 页码：595-599
• 全文大小：
• 作者单位：Behjat Ghasemi (1)
  Hamed Rouhi (1)
  Fereydoun Abbasi Davani (1)
  Zahra Shahbazi Rad (1)
  
  1. Shahid Beheshti University, Tehran, Iran
  
• ISSN：1572-9591

文摘

The main objective of this study is to determine energy distribution and angular distribution of nitrogen ions produced in plasma focus device SBUMTPF1 measured with polycarbonate nuclear track detector. To achieve this goal, the detectors were covered by different thicknesses of aluminum filters, using physical vapor deposition method and by coated films the anisotropic distribution of nitrogen ions was investigated. For determination of nitrogen ion energy distribution, the detectors were settled in the distance of 21.5cm and in 0angle to the end of anode and for determination of angular distribution of ions, 1,200nm aluminum coated detectors in 10cm distance and at angles of 0 15 30 45and 60with respect to the anode were used. For better ion detection, a pinhole of 200was used for energy distribution measurement and a pinhole of 500was used for angular distribution measurement. In all experiments electrical discharges were done in the voltage of 230.5kV and nitrogen with the pressure of 0.5mbar was used as working gas. By using SRIM code, the ranges of nitrogen ions were measured in aluminum. SBUMTPF1 angular distribution curve show a peak at a 30angle against the anode axis. Besides, the suitable thickness range of aluminum filter for data registration was from 1,240 to 2,620nm.