Quantum Noise-Limited Images In Screen Film Systems

J. W. Motz; M. Danos

doi:10.1117/12.933808

29 December 1982 Quantum Noise-Limited Images In Screen Film Systems

J. W. Motz, M. Danos

Proceedings Volume 0347, Application of Optical Instrumentation in Medicine X; (1982) https://doi.org/10.1117/12.933808
Event: Application of Optical Instrumentation in Medicine X, 1982, New Orleans, United States

Abstract

The limits imposed on the spatial resolution obtained with screen-film systems for low contrast images are determined primarily by x-ray quantum noise rather than by the spatial response (MTF curve) of the system. For 40 keV x rays incident on a HiPlus/XRP screen-film system, the x-ray quantum noise limits the spatial resolution in the density region of unity from approximately 0.2 to 1 line pair per mm for film density differences respectively in the region from .02 to 0.1. By comparison, the MTF effect over most of this region of density differences, produces less than a 10 percent degradation of the spatial resolution.

Citation Download Citation

J. W. Motz and M. Danos "Quantum Noise-Limited Images In Screen Film Systems", Proc. SPIE 0347, Application of Optical Instrumentation in Medicine X, (29 December 1982); https://doi.org/10.1117/12.933808

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