Accession Number:

ADA285256

Title:

High Brightness Cathodes for Microfocus X-Ray Generators

Descriptive Note:

Final rept.

Corporate Author:

L AND W RESEARCH INC WALLINGTON CT

Report Date:

1994-06-27

Pagination or Media Count:

19.0

Abstract:

Nondestructive inspection techniques such as Computed Tomography CT and Backscatter Imaging Tomography BIT have advanced to the point where detectors and image processors have reached a plateau in performance. Further improvement in the inspection techniques must come from better X-ray sources. Microfocus X-ray sources offer this improved performance due to their small X- ray spot size, which is generally on the order of tens of microns. The small spot approximates a point source, which reduces geometric distortions of the image. The sources currently available, however, frequently do not meet industrial user maintenance and ease-of-use standards, especially with regard to beam stability and electron emitter lifetime. By using new emitter materials, careful electron gun design, and proper high-vacuum construction techniques, we have developed a high-energy 360 keV, low-maintenance microfocus X-ray source with the improved performance required to meet these demands. X-Ray sources, Computed tomography, 360 keV Microfocus x-ray

Subject Categories:

  • Electrical and Electronic Equipment
  • Particle Accelerators
  • Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE