X-Ray Absorption and Scattering Issues for Rod-Pinch Radiographic Sources

Abstract

During the past decade, the rod-pinch diode has been used extensively for high-brightness, megavolt x-ray radiography. Success of the rod pinch derives from its small radiographic spot size for a range of driving voltages and x-ray spectra. Here, we examine two experimentally observed and more subtle phenomena that may impact radiographic performance for some systems: flat-field nonuniformity in the image plane due to x-ray absorption in the rod, and weak, large-scale structures around radiographic features due to cathode-scattered x-rays. X-ray imaging data from Cygnus and HRS are analyzed by the ITS Monte Carlo codes to determine if these phenomena are significant for Cygnus.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2009
Accession Number
ADA630270

Entities

People

  • B. M. Huhman
  • Bryan V. Oliver
  • David D. Hinshelwood
  • David Mosher
  • Gerald Cooperstein
  • Michael J. Berninger
  • Raymond J. Allen
  • S. Portillo
  • Stephen S. Lutz
  • Todd Haines

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Absorption
  • Abstracts
  • Aluminum
  • Brightness
  • Diameters
  • Electron Beams
  • Electrons
  • Energy
  • Intensity
  • National Security
  • Pulsed Power
  • Radiation
  • Radiography
  • Scattering
  • Spectra
  • X Ray Spectra
  • X Rays

Fields of Study

  • Physics

Readers

  • Pulsed Power and Plasma Physics.
  • Solar Physics