No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
Axial mass fraction measurements in a 300kA dense plasma focus
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, 557–587 (1962).
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, 93–170 (1998).
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), 371–376 (2009).
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).
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), 5052–5055 (1992).
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), 1127–1137 (1998).
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), 3351–3357 (2011).
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).
N. A. Krall and A. W. Trivelpiece, Principles of Plasma Physics ( Mc-Graw-Hill, New York, 1973).
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).
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).
Article metrics loading...
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 μg to 6 ± 0.02 μg 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.
Full text loading...
Most read this month