Experimental system for dual energy scanned projection radiography

A. L. Hall, N. J. Pelc, G. S. Riederer, G. S. Keyes, W. R. Brody, L. A. Lehmann, A. Macovski, R. E. Alvarez

Research output: Contribution to journalArticlepeer-review


Developing digital radiography techniques provides greater diagnostic information while utilizing less invasive procedures and/or decreased patient dose. An experimental scanned projection radiography system has been built using a CT detector and data acquisition system to provide increased contrast resolution and flexibility in data manipulation. Modifications to the basic system allow dual energy scanning, and subtraction algorithms relying on the energy dependence of the mass attenuation coefficient have been implemented.

Original languageEnglish (US)
Pages (from-to)155-159
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Nov 4 1981
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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