Comparison of measured and computed beam ion current densities emitted from two 2 kJ plasma focus machines

Computed results of beam ion current density are compared with the measured values for a range of pressures (0.13–1.33 mbar) and a range of distances (3–9 cm) downstream of the plasma compression commonly called the pinch in literature dealing with electromagnetically compressed dense plasmas. Parti...

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Main Authors: Akel, M., Alsheikh Salo, S., Ismael, Sh., Saw, S. H., Lee, S.
Format: Article
Published: Elsevier 2016
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Online Access:http://eprints.intimal.edu.my/764/
http://doi.org/10.1016/j.vacuum.2016.12.005
http://doi.org/10.1016/j.vacuum.2016.12.005
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spelling my-inti-eprints.7642017-04-17T02:39:34Z http://eprints.intimal.edu.my/764/ Comparison of measured and computed beam ion current densities emitted from two 2 kJ plasma focus machines Akel, M. Alsheikh Salo, S. Ismael, Sh. Saw, S. H. Lee, S. QC Physics Computed results of beam ion current density are compared with the measured values for a range of pressures (0.13–1.33 mbar) and a range of distances (3–9 cm) downstream of the plasma compression commonly called the pinch in literature dealing with electromagnetically compressed dense plasmas. Partial agreement is found to an extent not reported before. Computed and measured values of ion current densities of the order of 107 Am−2 are found. Moreover the results indicate that detectors should not be placed closer than two anode radii from the position of the plasma focus pinch to avoid interference with the pinch dynamics. The maximum power flow density is found to range from 1012 to 1014 Wm−2. The damage factor (heat flux factor) reach 109 - 1010 Wm−2s0.5 at the pinch exit, while the power flow densities and damage factor values decrease to around 1010 Wm−2 and 106 Wm−2s0.5, respectively, at the distances from the anode top more than 6 cm. Elsevier 2016 Article PeerReviewed Akel, M. and Alsheikh Salo, S. and Ismael, Sh. and Saw, S. H. and Lee, S. (2016) Comparison of measured and computed beam ion current densities emitted from two 2 kJ plasma focus machines. Vacuum, 136. pp. 163-167. ISSN 0042-207X http://doi.org/10.1016/j.vacuum.2016.12.005 http://doi.org/10.1016/j.vacuum.2016.12.005
institution INTI International University
building INTI Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider INTI International University
content_source INTI Institutional Repository
url_provider http://eprints.intimal.edu.my
topic QC Physics
spellingShingle QC Physics
Akel, M.
Alsheikh Salo, S.
Ismael, Sh.
Saw, S. H.
Lee, S.
Comparison of measured and computed beam ion current densities emitted from two 2 kJ plasma focus machines
description Computed results of beam ion current density are compared with the measured values for a range of pressures (0.13–1.33 mbar) and a range of distances (3–9 cm) downstream of the plasma compression commonly called the pinch in literature dealing with electromagnetically compressed dense plasmas. Partial agreement is found to an extent not reported before. Computed and measured values of ion current densities of the order of 107 Am−2 are found. Moreover the results indicate that detectors should not be placed closer than two anode radii from the position of the plasma focus pinch to avoid interference with the pinch dynamics. The maximum power flow density is found to range from 1012 to 1014 Wm−2. The damage factor (heat flux factor) reach 109 - 1010 Wm−2s0.5 at the pinch exit, while the power flow densities and damage factor values decrease to around 1010 Wm−2 and 106 Wm−2s0.5, respectively, at the distances from the anode top more than 6 cm.
format Article
author Akel, M.
Alsheikh Salo, S.
Ismael, Sh.
Saw, S. H.
Lee, S.
author_facet Akel, M.
Alsheikh Salo, S.
Ismael, Sh.
Saw, S. H.
Lee, S.
author_sort Akel, M.
title Comparison of measured and computed beam ion current densities emitted from two 2 kJ plasma focus machines
title_short Comparison of measured and computed beam ion current densities emitted from two 2 kJ plasma focus machines
title_full Comparison of measured and computed beam ion current densities emitted from two 2 kJ plasma focus machines
title_fullStr Comparison of measured and computed beam ion current densities emitted from two 2 kJ plasma focus machines
title_full_unstemmed Comparison of measured and computed beam ion current densities emitted from two 2 kJ plasma focus machines
title_sort comparison of measured and computed beam ion current densities emitted from two 2 kj plasma focus machines
publisher Elsevier
publishDate 2016
url http://eprints.intimal.edu.my/764/
http://doi.org/10.1016/j.vacuum.2016.12.005
http://doi.org/10.1016/j.vacuum.2016.12.005
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score 13.222552