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/content/aip/journal/pop/23/9/10.1063/1.4962679
1.
J. W. Mather, “ Investigation of the high-energy acceleration mode in the coaxial gun,” Phys. Fluids 7(11), S28 (1964).
http://dx.doi.org/10.1063/1.1711086
2.
N. V. Fillipov, T. I. Fillipova, and V. P. Vinogradov, “ Dense high- temperature plasma in a non-cylindrical Z-pinch compression,” Nucl. Fusion Suppl. 2, 557587 (1962).
3.
M. Krishnan, “ The dense plasma focus: A versatile dense pinch for diverse applications,” IEEE Trans. Plasma Sci. 40(12), 31893221 (2012).
http://dx.doi.org/10.1109/TPS.2012.2222676
4.
D. E. Potter, “ Numerical studies of the plasma focus,” Phys. Fluids 14(9), 1911 (1971).
http://dx.doi.org/10.1063/1.1693700
5.
A. Bernard, H. Bruzzone, P. Choi, H. Chuaqui, V. Gribkov', J. Herrera, K. Hirano, A. Krejci, S. Lee, C. Luo, F. Mezzetti, M. Sadowski, H. Schmidt, K. Ware, C. S. Wong, and V. Zoita, “ Scientific status of plasma focus research,” J. Moscow. Phys. Soc. 8, 93170 (1998).
6.
W. Stygar, G. Gerdin, F. Venneri, and J. Mandrekas, “ Particle beams generated by a 612.5 kJ dense plasma focus,” Nucl. Fusion 22(9), 11611172 (1982).
http://dx.doi.org/10.1088/0029-5515/22/9/003
7.
M. A. Mohammadi, S. Sobhanian, M. Ghomeishi, E. Ghareshabani, M. Moslehi-Fard, S. Lee, and R. S. Rawat, “ Current sheath dynamics and its evolution studies in Sahand Filippov type plasma focus,” J. Fusion Energy 28(4), 371376 (2009).
http://dx.doi.org/10.1007/s10894-009-9205-2
8.
L. Soto, C. Pavez, J. Moreno, M. J. Inestrosa-Izurieta, F. Veloso, G. Gutiérrez, J. Vergara, A. Clausse, H. Bruzzone, F. Castillo, and L. F. Delgado-Aparicio, “ Characterization of the axial plasma shock in a table top plasma focus after the pinch and its possible application to testing materials for fusion reactors,” Phys. Plasmas 21(12), 122703 (2014).
http://dx.doi.org/10.1063/1.4903471
9.
P. G. Burkhalter, G. Mehlman, D. A. Newman, M. Krishnan, and R. R. Prasad, “ Quantitative x-ray emission from a DPF device,” Rev. Sci. Instrum. 63(10), 50525055 (1992).
http://dx.doi.org/10.1063/1.1143489
10.
S. Lee, “ Plasma focus radiative model: Review of the lee model code,” J. Fusion Energy 33(4), 319335 (2014).
http://dx.doi.org/10.1007/s10894-014-9683-8
11.
N. Qi, S. F. Fulghum, R. R. Prasad, and M. Krishnan, “ Space and time resolved electron density and current measurements in a dense plasma focus Z-pinch,” IEEE Trans. Plasma Sci. 26(4), 11271137 (1998).
http://dx.doi.org/10.1109/27.725142
12.
B. L. Bures, M. Krishnan, and R. E. Madden, “ Relationship between neutron yield and macroscale pinch dynamics of a 1.4-kJ plasma focus over hundreds of pulses,” IEEE Trans. Plasma Sci. 39(12), 33513357 (2011).
http://dx.doi.org/10.1109/TPS.2011.2170588
13.
F. Veloso, J. Moreno, A. Tarifeño-Saldivia, C. Pavez, M. Zambra, and L. Soto, “ Non-intrusive plasma diagnostics for measuring sheath kinematics in plasma focus discharges,” Meas. Sci. Technol. 23(8), 087002 (2012).
http://dx.doi.org/10.1088/0957-0233/23/8/087002
14.
B. L. Bures, M. Krishnan, and C. James, “ A plasma focus electronic neutron generator,” IEEE Trans. Plasma Sci. 40(4), 10821088 (2012).
http://dx.doi.org/10.1109/TPS.2012.2183648
15.
N. A. Krall and A. W. Trivelpiece, Principles of Plasma Physics ( Mc-Graw-Hill, New York, 1973).
16.
F. Veloso, A. Tarifeño-Saldivia, C. Pavez, J. Moreno, M. Zambra, and L. Soto, “ Plasma sheath kinematics and some implications on the modeling of very low energy plasma focus devices,” Plasma Phys. Controlled Fusion 54(9), 095007 (2012).
http://dx.doi.org/10.1088/0741-3335/54/9/095007
17.
S. Lee, S. H. Saw, P. C. K. Lee, R. S. Rawat, and H. Schmidt, “ Computing plasma focus pinch current from total current measurement,” Appl. Phys. Lett. 92(11), 111501 (2008).
http://dx.doi.org/10.1063/1.2899632
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/content/aip/journal/pop/23/9/10.1063/1.4962679
2016-09-16
2016-09-26

Abstract

The dynamics and characteristics of the plasma sheath during the axial phase in a ∼300 kA, ∼2 kJ dense plasma focus using a static gas load of Ne at 1–4 Torr are reported. The sheath, which is driven axially at a constant velocity ∼105 m/s by the j × B force, is observed using optical imaging, to form an acute angle between the electrodes. This angle becomes more acute (more parallel to the axis) along the rundown. The average sheath thickness nearer the anode is 0.69 ± 0.02 mm and nearer the cathode is 0.95 ± 0.02 mm. The sheath total mass increases from 1 ± 0.02 g to 6 ± 0.02 g over the pressure range of 1–4 Torr. However, the mass fraction (defined as the sheath mass/total mass of cold gas between the electrodes) decreases from 7% to 5%. In addition, the steeper the plasma sheath, the more mass is lost from the sheath, which is consistent with radial and axial motion. Experimental results are compared to the Lee code when 100% of the current drives the axial and radial phase.

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