Study of Current Sheath Velocities in Tridimensional with Sahand Plasma Focus

The current sheath dynamics in plasma focus facilities is the most important factors. In this paper the current sheath velocity at three dimensional with Sahand plasma focus facility is investigated. For this purpose the discharge is produced in argon gas with deposited energy lying in the range of 20-37kJ. The current sheath is monitored using two tridimensional magnetic probes. These probes installed near the surface of the interior electrode (anode) at 125mm from the anode axis (pinch place). The effect of gas pressure on the current sheath velocity also is investigated.

Authors:

• M.A. Mohammadi
• H.Alinejad
• A.Piri

Keywords:

• Plasma focus
• Current sheath
• magnetic probe

References:

[1] N. V. Filippov, T. I. Filippova and Vinogradov V P, 1962 ., Nucl. Fusion
Suppl. 2, 77.
[2] J. W. Mather, 1964 Phys. Fluids Suppl. 7, 28.
[3] Springham S V, Lee S, and Rafique M S 2000 Plasma
Phys.Contr.Fusion 42 1023.
[4] Wong C S, Choi P, Leong W S and Singh J 2002 Jpn. J. Appl. Phys. 41
3943.
[5] Patran A, Stoenescu D, Rawat R S, Springham S V, Tan T L, Tan L C,
Rafique M S, Lee P and Lee S 2006 J. Fusion Energy 25 57.
[6] Zakaullah M, Alamgir A, Shafiq M, Sharif M and Waheed A 2002 IEEE
Trans. on Plasma Sci 30 2089.
[7] Mohammadi M A, Verma R, Sobhanian S, Wong C S, Lee S, Springham
S V, Tan T L, Lee P and Rawat R S 2007 Plasma Sour. Sci. Tech. 16
785.
[8] Shafiq M, S Hussain, Waheed A and Zakaullah M 2003 Plasma Sour.
Sci. Tech. 12 199.
[9] Bhuyan H, Mohanty S R, Neagy N K, Bujarbarua S and Rout R K 2004
J.Appl.Phys 95 2975.
[10] Mohammadi M A, Sobhanian S, Wong C S, Lee S, Lee P and Rawat R S
2009, J.phys.D:Appl.phys.42 045203.
[11] Lee S, Lee P, Zhang G, Serban A, Liu M, Liu X, Feng X, Springham S
V, Selvam C S, Kudryashov V and Wong T K S 2003 Sing.J.Phys.173
276
[12] Kato Y and Be S H 1986 Appl.Phys.Lett. 48 686
[13] Gribkov V A, Srivastava A, Keat P L C, Kudryashov V and Lee S 2002
IEEE Trans.Plasma Sci. 30 1331
[14] Beg F N, Ross I, Lorena A, Worley J F, Danger A E and Hanies M G
2000 J.Appl.Phys. 88 3225
[15] Wong D, Patran A, Tan T L, Rawat R S and Lee P 2004 IEEE Trans.on
Plasma Sci. 32 2227
[16] Hussain S, Shafiq M, Ahmad R, Waheed A and Zakaullah M 2005
Plasma Sour. Sci. Tech. 14 61
[17] Bernard A, Coudeville A, Jolas A, Launspach J and de Mascureau J
1975 Phys. Fluids 18 180
[18] Toepfer A J, Smith D R and Beckner E H 1971 Phys. Fluids 14 52
[19] Mohammadi M A, Sobhanian S, Ghomeishi M, Ghareshabani E,
Moslehi-fard M, Lee S and Rawat R S, 2009, Journal of fusion energy,
28, 371.