Submillimeter-resolution radiography of shielded structures with laser-accelerated electron beams

Vidya Ramanathan, Sudeep Banerjee, Nathan Powers, Nathaniel Cunningham, Nathan A. Chandler-Smith, Kun Zhao, Kevin Brown, Donald Umstadter, Shaun Clarke, Sara Pozzi, James Beene, C. R. Vane, David Schultz

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

We investigate the use of energetic electron beams for high-resolution radiography of flaws embedded in thick solid objects. A bright, monoenergetic electron beam (with energy >100 MeV) was generated by the process of laser-wakefield acceleration through the interaction of 50-TW, 30-fs laser pulses with a supersonic helium jet. The high energy, low divergence, and small source size of these beams make them ideal for high-resolution radiographic studies of cracks or voids embedded in dense materials that are placed at a large distance from the source. We report radiographic imaging of steel with submillimeter resolution.

Original languageEnglish (US)
Article number104701
JournalPhysical Review Special Topics - Accelerators and Beams
Volume13
Issue number10
DOIs
StatePublished - 2010

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)
  • Surfaces and Interfaces

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