Sensitometry In Computerized Tomography

Kenneth E. Weaver; David J. Goodenough; Ellen Briefel

doi:10.1117/12.955919

27 December 1977 Sensitometry In Computerized Tomography

Kenneth E. Weaver, David J. Goodenough, Ellen Briefel

Proceedings Volume 0127, Application of Optical Instrumentation in Medicine VI; (1977) https://doi.org/10.1117/12.955919
Event: Application of Optical Instrumentation in Medicine VI, 1977, Boston, United States

Abstract

This paper will present a definition of Sensitometry in Computerized Tomography and discuss practical techniques used to determine relative CT sensitometry. Several factors that influence CT sensitometry are: (1) the x-ray beam spectral distribution, (2) the composition of the sample materials, (3) volume averaging, and (4) spatial nonuniformity of the scan field including the x-ray intensity distribution within the sample volume. Examples of comparative sensitometry among several CT units is presented as well as discussion of a technique for obtaining a continuous rather than discrete output.

Citation Download Citation

Kenneth E. Weaver, David J. Goodenough, and Ellen Briefel "Sensitometry In Computerized Tomography", Proc. SPIE 0127, Application of Optical Instrumentation in Medicine VI, (27 December 1977); https://doi.org/10.1117/12.955919

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