High-energy laser-accelerated electron beams for long- Range interrogation

Nathaniel J. Cunningham, Sudeep Banerjee, Vidya Ramanathan, Nathan Powers, Nate Chandler-Smith, Randy Vane, David Schultz, Sara Pozzi, Shaun Clarke, James Beene, Donald Umstadter

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

We are studying the use of 0.1 - 1.0 GeV laser-accelerated electron beams as active interrogation probes for long-standoff radiography or nuclear activation of concealed special nuclear material. Use of beams in this energy range is largely unexplored, but such beams could provide notable advantages over lower-energy beams and x-rays. High- energy laser-accelerated electrons exhibit large penetration range through air and solids, and low beam divergence for both direct beams and secondary Bremsstrahlung x-rays. We present laboratory measurements of radiography and activation, using the high-power Diocles laser system at the University of Nebraska, as well as MCNP and GEANT Monte Carlo simulation results used to aid experiment design and interpretation.

Original languageEnglish (US)
Pages (from-to)638-642
Number of pages5
JournalAIP Conference Proceedings
Volume1099
DOIs
StatePublished - 2009
Event20th International Conference on the Application of Accelerators in Research and Industry, CAARI 2008 - Fort Worth, TX, United States
Duration: Aug 10 2008Aug 15 2008

Keywords

  • Active interrogation
  • Laser wakefield accelerators
  • Nuclear activation
  • Particle beam radiography

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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