Power, Control, and Data Processing Systems

Power, Control, and Data Processing Systems

Simulation Of Ion Beam Interaction of Plasma Focus Device With The Inner Surface Of Faraday Cup

Document Type : Original Research

Authors
Noushin Pishbin 1
Maryam Akbari Nasaji 1
Amin Masoumzadeh 2
Ali Nasiri 1
1 Plasma and Nuclear Fusion Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
2 Physics and accelerators research school, Nuclear Science and Technology Research Institute, Tehran, Iran
10.30511/pcdp.2025.2072876.1048
Abstract
One of the important topics in the use of Faraday cup in plasma focus devices is the production of secondary electrons due to the collision of beam particles with the inner surface of the Faraday cup and their trapping in the measurement of particle beam flow by the cup. Therefore, in this study, the simulation of the geometrical effects such as the depth and Internal structure of the cup on the production of secondary electrons and the output current of the Faraday cup has been done. The used simulation tool is CST STUDIO SUITE. Based on the simulation results, reducing the aspect ratio leads to an increase in the particle trapping ability, and as a result, the flow measured by the Faraday cup is closer to the real flow. Furthermore, The Faraday cup current for a cylindrical sample is greater than the actual current and in the ramp example, the Faraday cup current is closer to the actual value.
Keywords
Plasma focus device
Ion Beam
Array Faraday-Cup

Subjects

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Power, Control, and Data Processing Systems
Volume 3, Issue 1
Winter 2026
Pages 48-53

  • Receive Date 27 September 2025
  • Revise Date 28 October 2025
  • Accept Date 23 November 2025
  • First Publish Date 23 November 2025
  • Publish Date 01 March 2026