جهت دسترسی به کاربرگه ی زیر، از این لینک استفاده کنید. http://dl.pgu.ac.ir/handle/Hannan/82798
Title: Axial mass fraction measurements in a 300kA dense plasma focus
Keywords: Science & Technology;Physical Sciences;Physics, Fluids & Plasmas;Physics;PINCH;Fluids & Plasmas;0202 Atomic, Molecular, Nuclear, Particle And Plasma Physics;0201 Astronomical And Space Sciences;0203 Classical Physics
Issue Date: 16-Sep-2016
30-Aug-2016
Publisher: AIP Publishing
Description: 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.
URI: http://dx.doi.org/10.1063/1.4962679
Other Identifiers: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000385633200074&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
1089-7674
http://hdl.handle.net/10044/1/43003
10321012-SUB
Type Of Material: Other
Appears in Collections:Physics

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