Neutron yield saturation in plasma focus: A fundamental cause

Plasma focus research in the direction of fusion energy faces the limitation of observed neutron saturation; the neutron yield Yn falls away from Yn E0 2 , the scaling deteriorating as storage energy E0 increases toward 1 MJ. Numerical experiments confirm that Yn E0 2 applies at low energies and...

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Main Author: Lee, S.
Format: Article
Language:English
Published: AIP Publishing 2009
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Online Access:http://eprints.intimal.edu.my/272/1/2.pdf
http://eprints.intimal.edu.my/272/
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spelling my-inti-eprints.2722016-05-12T09:11:58Z http://eprints.intimal.edu.my/272/ Neutron yield saturation in plasma focus: A fundamental cause Lee, S. QC Physics Plasma focus research in the direction of fusion energy faces the limitation of observed neutron saturation; the neutron yield Yn falls away from Yn E0 2 , the scaling deteriorating as storage energy E0 increases toward 1 MJ. Numerical experiments confirm that Yn E0 2 applies at low energies and drops to Yn E0 0.8 toward 25 MJ; deteriorating already at several hundred kilojoules. We point out that the cause is the dynamic resistance of the axial phase that is constant for all plasma foci. This dynamic resistance dominates the circuit as capacitor bank surge impedance becomes insignificant at large E0, causing current, hence neutron “saturation.” AIP Publishing 2009 Article PeerReviewed text en http://eprints.intimal.edu.my/272/1/2.pdf Lee, S. (2009) Neutron yield saturation in plasma focus: A fundamental cause. Applied Physics Letters, 95 (15). ISSN 1077-3118 10.1063/1.3246159
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
language English
topic QC Physics
spellingShingle QC Physics
Lee, S.
Neutron yield saturation in plasma focus: A fundamental cause
description Plasma focus research in the direction of fusion energy faces the limitation of observed neutron saturation; the neutron yield Yn falls away from Yn E0 2 , the scaling deteriorating as storage energy E0 increases toward 1 MJ. Numerical experiments confirm that Yn E0 2 applies at low energies and drops to Yn E0 0.8 toward 25 MJ; deteriorating already at several hundred kilojoules. We point out that the cause is the dynamic resistance of the axial phase that is constant for all plasma foci. This dynamic resistance dominates the circuit as capacitor bank surge impedance becomes insignificant at large E0, causing current, hence neutron “saturation.”
format Article
author Lee, S.
author_facet Lee, S.
author_sort Lee, S.
title Neutron yield saturation in plasma focus: A fundamental cause
title_short Neutron yield saturation in plasma focus: A fundamental cause
title_full Neutron yield saturation in plasma focus: A fundamental cause
title_fullStr Neutron yield saturation in plasma focus: A fundamental cause
title_full_unstemmed Neutron yield saturation in plasma focus: A fundamental cause
title_sort neutron yield saturation in plasma focus: a fundamental cause
publisher AIP Publishing
publishDate 2009
url http://eprints.intimal.edu.my/272/1/2.pdf
http://eprints.intimal.edu.my/272/
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