Intense beam-target interactions in linear induction accelerator radiography systems

George J Caporaso, Y. J. Chen, T. Houck, S. Sampayan, T. Hughes, B. Oliver, D. Welch, C. Christ

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Modern flash x-ray systems employing electron linear induction accelerators require focal spot sizes of order 1 mm diameter incident on high-Z Bremsstrahlung targets. Typical beam parameters are in the range of several kiloamperes, tens of MeV with pulse lengths of order 50 ns. A single pulse with these parameters is so intense that it converts the target material into a hot plasma with velocities on the order of several centimeters per microsecond. Intense axial electric fields will exist on the target surface which may lead to the extraction of light contaminant ions. These ions can travel upstream where they will act as an electrostatic lens which can cause a time varying disruption of the focal spot. Experimental and theoretical work on this backstreaming ion mechanism will be presented along with issues for multiple pulse operation.

Original languageEnglish (US)
Title of host publicationIEEE International Conference on Plasma Science
PublisherIEEE
Pages180
Number of pages1
StatePublished - 1999
Externally publishedYes
EventThe 26th IEEE International Conference on Plasma Science (ICOPS99) - Monterey, CA, USA
Duration: Jun 20 1999Jun 24 1999

Other

OtherThe 26th IEEE International Conference on Plasma Science (ICOPS99)
CityMonterey, CA, USA
Period6/20/996/24/99

ASJC Scopus subject areas

  • Condensed Matter Physics

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  • Cite this

    Caporaso, G. J., Chen, Y. J., Houck, T., Sampayan, S., Hughes, T., Oliver, B., Welch, D., & Christ, C. (1999). Intense beam-target interactions in linear induction accelerator radiography systems. In IEEE International Conference on Plasma Science (pp. 180). IEEE.