Spatial MTF Of Image Intensifiers

Lloyd M. Bates; Jagdish P. Bhatnagar

doi:10.1117/12.953905

1 May 1974 Spatial MTF Of Image Intensifiers

Lloyd M. Bates, Jagdish P. Bhatnagar

Proceedings Volume 0043, Application of Optical Instrumentation in Medicine II; (1974) https://doi.org/10.1117/12.953905
Event: Application of optical Instrumentation in Medicine II, 1973, Chicago, United States

Abstract

The most generally used method to determine the MTF of x-ray image intensifiers is through the use of a test object which impresses on the image intensifier a square wave input signal. These devices are usually fabricated from lead sheet by cutting a series of slits of width w separated by an equal width of lead. Different spatial frequencies are obtained by making a series of objects of different slit and separation widths. The output signal resulting from these test objects is the intensifier's response to a square wave. To obtain the MTF, this response is converted mathematically to that which would have resulted from a sinusoidal input signal (1).

Citation Download Citation

Lloyd M. Bates and Jagdish P. Bhatnagar "Spatial MTF Of Image Intensifiers", Proc. SPIE 0043, Application of Optical Instrumentation in Medicine II, (1 May 1974); https://doi.org/10.1117/12.953905

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