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Ion acceleration mechanism in plasma focus devices

Published online by Cambridge University Press:  23 June 2017

H. Sadeghi ,
M. Habibi  and
M. Ghasemi
H. Sadeghi*
Affiliation:
Energy Engineering and Physics Department, Amirkabir University of Technology, Tehran, Iran
M. Habibi
Affiliation:
Energy Engineering and Physics Department, Amirkabir University of Technology, Tehran, Iran
M. Ghasemi
Affiliation:
Energy Engineering and Physics Department, Amirkabir University of Technology, Tehran, Iran
*
Address correspondence and reprint requests to: H. Sadeghi, Energy Engineering and Physics Department, Amirkabir University of Technology, Tehran, Iran. E-mails: [email protected] and [email protected]
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Abstract

Plasma focus is one type of ion source with energy up to few MeV. While some efforts have been made to understand the physics of ion beam acceleration in plasma focus devices (PFD), an acceptable clarification does not exist yet. In this work, the procedure of ions) electrons) acceleration in PFDs to the MeV energy is investigated theoretically. Moreover, the trajectory of electrons (ions) and their angular distribution are studied. The simulations are carried out by COMSOL Multiphysics version 5.2 for a 4.5 kJ Mather type PFD. The results of simulations and calculations show that trapped ions in the negative potential of electrons, their movement toward the top of the anode and the drift motion due to electrical and magnetic fields near the top of the anode are the main causes of high energy electrons (ions) production and acceleration.

Keywords

Drift motionIon and electron accelerationPlasma focus device
Type
Research Article
Information
Laser and Particle Beams , Volume 35 , Issue 3 , September 2017 , pp. 437 - 441
Copyright
Copyright © Cambridge University Press 2017 

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References

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