International
Tables for Crystallography Volume C Mathematical, physical and chemical tables Edited by E. Prince © International Union of Crystallography 2006 
International Tables for Crystallography (2006). Vol. C, ch. 7.1, p. 634
Figure 7.1.7.2
J. Chikawa^{c}


Figure 7.1.7.2
Squarewave modulation transfer function (MTF) measured for the DIStype, conventionaltype Se–As and PbO camera tubes. This function shows the magnitude of brightness modulation in the output image obtained for an input image with a squarewave intensity distribution and is defined by where and are the maximum and minimum intensities of the input image, respectively, and and are those of the output. DIS stands for diodeoperation impregnatedcathode Saticon. 