Beyond the Child–Langmuir law: A review of recent results on multidimensional space-charge-limited flow
dc.contributor.author | Luginsland, John W. | en_US |
dc.contributor.author | Lau, Y. Y. | en_US |
dc.contributor.author | Umstattd, R. J. | en_US |
dc.contributor.author | Watrous, J. J. | en_US |
dc.date.accessioned | 2010-05-06T20:55:54Z | |
dc.date.available | 2010-05-06T20:55:54Z | |
dc.date.issued | 2002-05 | en_US |
dc.identifier.citation | Luginsland, J. W.; Lau, Y. Y.; Umstattd, R. J.; Watrous, J. J. (2002). "Beyond the Child–Langmuir law: A review of recent results on multidimensional space-charge-limited flow." Physics of Plasmas 9(5): 2371-2376. <http://hdl.handle.net/2027.42/69652> | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/69652 | |
dc.description.abstract | Space-charge-limited (SCL) flows in diodes have been an area of active research since the pioneering work of Child and Langmuir in the early part of the last century. Indeed, the scaling of current density with the voltage to the 3/2’s power is one of the best-known limits in the fields of non-neutral plasma physics, accelerator physics, sheath physics, vacuum electronics, and high power microwaves. In the past five years, there has been renewed interest in the physics and characteristics of SCL emission in physically realizable configurations. This research has focused on characterizing the current and current density enhancement possible from two- and three-dimensional geometries, such as field-emitting arrays. In 1996, computational efforts led to the development of a scaling law that described the increased current drawn due to two-dimensional effects. Recently, this scaling has been analytically derived from first principles. In parallel efforts, computational work has characterized the edge enhancement of the current density, leading to a better understanding of the physics of explosive emission cathodes. In this paper, the analytic and computational extensions to the one-dimensional Child–Langmuir law will be reviewed, the accuracy of SCL emission algorithms will be assessed, and the experimental implications of multidimensional SCL flows will be discussed. © 2002 American Institute of Physics. | en_US |
dc.format.extent | 3102 bytes | |
dc.format.extent | 272863 bytes | |
dc.format.mimetype | text/plain | |
dc.format.mimetype | application/pdf | |
dc.publisher | The American Institute of Physics | en_US |
dc.rights | © The American Institute of Physics | en_US |
dc.title | Beyond the Child–Langmuir law: A review of recent results on multidimensional space-charge-limited flow | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109-2104 | en_US |
dc.contributor.affiliationother | Center for Plasma Theory and Computation, High Power Microwave Division, Directed Energy Directorate, Air Force Research Laboratory, Kirtland AFB, New Mexico 87117 | en_US |
dc.contributor.affiliationother | Center for Plasma Theory and Computation, High Power Microwave Division, Directed Energy Directorate, Air Force Research Laboratory, Kirtland AFB, New Mexico 87117 | en_US |
dc.contributor.affiliationother | NumerEx, Albuquerque, New Mexico 87106 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/69652/2/PHPAEN-9-5-2371-1.pdf | |
dc.identifier.doi | 10.1063/1.1459453 | en_US |
dc.identifier.source | Physics of Plasmas | en_US |
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dc.owningcollname | Physics, Department of |
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