Some Sources Of Errors In The Performance Testing Of Diagnostic X-Ray Systems

Tommie J. Morgan; Libby B. Smith; Leland R. Kirkland

doi:10.1117/12.965443

23 December 1976 Some Sources of Errors in the Performance Testing Of Diagnostic X-Ray Systems

Tommie J. Morgan, Libby B. Smith, Leland R. Kirkland

Proceedings Volume 0096, Application of Optical Instrumentation in Medicine V; (1976) https://doi.org/10.1117/12.965443
Event: Application of Optical Instrumentation in Medicine V, 1976, Washington, D.C., United States

Abstract

Sources of error associated with the measurement of four performance parameters are discussed in this paper. These are the measurement of half-value layer (HVL), light field edge location, x-ray and light field congruence, and x-ray field size. HVL measurement parameters discussed are field size, the detector energy-dependent response, and x-ray beam filtration. Light field edge location by both visual and photometric methods are compared and differences quantified for one x-ray beam collimator. The impact of the different methods of light field edge location on x-ray and light field congruence are described. X-ray field size measurements for x-ray systems having large focal spots are discussed. The effect of the large focal spot as it impacts on small x-ray field size measurements is described.

Citation Download Citation

Tommie J. Morgan, Libby B. Smith, and Leland R. Kirkland "Some Sources of Errors in the Performance Testing Of Diagnostic X-Ray Systems", Proc. SPIE 0096, Application of Optical Instrumentation in Medicine V, (23 December 1976); https://doi.org/10.1117/12.965443

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