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Simulation of dense plasma focus devices to produce N-13 efficiently

  • H. Sadeghi (a1), R. Amrollahi (a1), S. Fazelpour (a1) and M. Omrani (a1)


A novel idea is presented in this paper to simulation, design, and feasibility of making a machine in order to produce nitrogen 13 (N-13) at a much lower cost than conventional medical applications. In a plasma focus device, only 0.02% of the generated ions have more than 1 MeV energy. In this paper, using a new idea we have tried to find a solution to increase the energy of deuterium ions to produce N-13. To achieve this, a series of magnetic lenses has been used to focus and guide the ions. To increase the ion energy, a small linear accelerator has been designed using a TM010 waveguide. The accelerator waveguide is also designed and optimized to have the highest impedance matching and maximum power transmission. Eventually, low-energy ions that are transmitted by magnetic lenses accelerate in the waveguide electric field and their energy increases significantly. The collision of these energetic ions with graphite target produce N-13.


Corresponding author

Author for correspondence: H. Sadeghi and R. Amrollahi, Energy Engineering and Physics Department, Amirkabir University of Technology, Tehran, Iran. E-mail: and


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Akel, M, Alsheikh Salo, S, Ismael, S, Saw, SH and Lee, S (2014) Interaction of the high energy deuterons with the graphite target in the plasma focus devices based on Lee model. Physics of Plasmas 21, 072507.
Auluck, SKH (2014) Bounds imposed on the sheath velocity of a dense plasma focus by conservation laws and ionization stability condition. Physics of Plasmas 21, 090703.
Balanis, CA (1989) Advanced Engineering Electromagnetics. New York: John Wiley & Sons.
Beg, FN, Ross, I and Dangor, AE (1997) X-ray Emission from a 2 kJ Plasma Focus in Dense Z-Pinches, Fourth International Conference, AIP Conference Proceedings 409, 339.
Bilén, S, Valentino, C, Micci, M and Clemens, D (2005) Numerical electromagnetic modeling of a low-power microwave electrothermal thruster. In 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 3699.
Bostick, WH, Kilic, H, Nardi, V and Powell, CW (1993) Time resolved energy spectrum of the axial ion beam generated in plasma focus discharges. Nuclear fusion 33, 413.
Decker, G, Flemming, L, Kaeppeler, HJ, Oppenlander, T, Pross, G, Schilling, P, Schmidt, H, Shakhatre, M and Trunk, M (1980) Current and neutron yield scaling of fast high voltage plasma focus. Plasma Physics 22, 245.
Elgarhy, MAI (2010) Plasma focus and its applications (Doctoral dissertation, M. Sc. Thesis). Cairo).
Freeman, B (2007) in Proceedings of the 4th Symposium on Current Trends in International Fusion Research, Washington DC, 2001, edited by C. D. Orth and E. Panarella (National Research Council of Canada).
Gribkov, VA, Banaszak, A, Bienkowska, B, Dubrovsky, AV, Ivanova-Stanik, I, Jakubowski, L, Karpinski, L, Miklaszewski, RA, Paduch, M, Sadowski, MJ, Scholz, M, Szydlowski, A and Tomaszewski, K (2007) Plasma dynamics in the PF-1000 device under full-scale energy storage: II. Fast electron and ion characteristics versus neutron emission parameters and gun optimization perspectives. Journal of Physics D: Applied Physics 40, 3592.
Haghani, SF, Sadighzadeh, A, Talaei, A, Zaeem, AA, Kiai, SS, Heydarnia, A and Damideh, V (2013) Theoretical study of the endogenous production of N-13 in 115 kJ plasma focus device using methane gas. Journal of Fusion Energy 32, 480487.
Kakavandi, JA, Roshan, MV and Habibi, M (2016) Short-lived radioisotopes scaling with energy in plasma focus device. The European Physical Journal D 70, 49.
Kelly, H and Marquez, A (1996) Ion-beam and neutron production in a low-energy plasma focus. Plasma physics and controlled fusion 38, 1931.
Kiai, SS, Chaharborj, SS, Bakar, MA and Fudziah, I (2011) Effect of damping force on CIT and QIT ion traps supplied with a periodic impulse voltage form. Journal of Analytical Atomic Spectrometry 26, 22472256.
Lee, S (2012) Radiative dense plasma focus computation Package: RADPF, Available at
Lee, S and Saw, SH (2012) Plasma focus ion beam fluence and flux—Scaling with stored energy. Physics of Plasmas 19, 112703.
Lee, S, Lee, P, Zhang, G, Feng, X, Gribkov, VA, Liu, M, and Serban, A (1998) High rep rate high performance plasma focus as a powerful radiation source. IEEE Transactions on Plasma Science 26, 11191126.
Mohammadi, MA, Verma, R, Sobhanian, S, Wong, CS, Lee, S, Springham, SV, Tan, TL, Lee, P and Rawat, RS (2007) Neon soft x-ray emission studies from the UNU-ICTP plasma focus operated with longer than optimal anode length. Plasma Sources Science and Technology 16, 785.
Mohanty, SR, Bhuyan, H, Neog, NK, Rout, RK and Hotta, E (2005) Development of multi Faraday cup assembly for ion beam measurements from a low energy plasma focus device. Japanese Journal of Applied Physics 44, 5199.
Paper presented at the International Workshop On Plasma Computations & Applications (IWPCA 2008), Kuala Lumpur, Malaysia, 14–15 July 2008.
Roshan, MV, Springham, SV, Rawat, RS and Lee, P (2010) Short-lived PET radioisotope production in a small plasma focus device. IEEE Transactions on Plasma Science 38, 33933397.
Sadeghi, H, Amrollahi, R, Zare, M and Fazelpour, S (2017 a) High efficiency focus neutron generator. Plasma Physics and Controlled Fusion 59, 125006.
Sadeghi, H, Habibi, M and Ghasemi, M (2017 b) Ion acceleration mechanism in plasma focus devices. Laser and Particle Beams 35, 437441.
Sadeghi, H, Roshan, MV, Fazelpour, S and Zare, M (2017 c) Pulsed plasma neutron accelerator. Journal of Fusion Energy 36, 6670.
Saw, SH, Subedi, D, Khanal, R, Shrestha, R, Dugu, S and Lee, S (2014) Numerical experiments on PF1000 neutron yield. Journal of Fusion Energy 33, 684688.
Saw, SH, Lee, P, Rawat, RS, Verma, R, Subedi, D, Khanal, R, Gautam, P, Shrestha, R, Singh, A and Lee, S (2015) Comparison of measured neutron yield versus pressure curves for FMPF-3, NX2 and NX3 plasma focus machines against computed results using the Lee model code. Journal of Fusion Energy 34, 474479.
Soto, L (2005) New trends and future perspectives on plasma focus research. Plasma Physics and Controlled Fusion 47, A361.
Soto, L, Silva, P, Moreno, J, Silvester, G, Zambra, M, Pavez, C, Altamirano, L, Bruzzone, H, Barbaglia, M, Sidelnikov, Y and Kies, W (2004) Research on pinch plasma focus devices of hundred of kilojoules to tens of joules. Brazilian Journal of Physics 34, 18141821.
Soto, L, Pavez, C, Tarifeno, A, Moreno, J and Veloso, F (2010) Studies on scalability and scaling laws for the plasma focus: Similarities and differences in devices from 1 MJ to 0.1 J. Plasma Sources Science and Technology 19, 055017.
Stygar, W, Gerdin, G, Venneri, F and Mandrekas, J (1982) Particle beams generated by a 6–12.5 kJ dense plasma focus. Nuclear Fusion 22, 1161.
Sullivan, DJ and Micci, MM (1993) Development of a Microwave Resonant Cavity Electrothermal Thruster Prototype, IEPC- 93-036, 23rd International Electric Propulsion Conference, Seattle,WA, 337–354.
Verma, R, Roshan, MV, Malik, F, Lee, P, Lee, S, Springham, SV, Tan, TL, Krishnan, M and Rawat, RS (2008) Compact sub-kilojoule range fast miniature plasma focus as portable neutron source. Plasma Sources Science and Technology 17, 045020.



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