5.12 Consider two 1-D functions h1(x) = e-x2/5 and 11(x) = e-x2/10, (a) Suppose h1(x) is the PSF of the extended source in a projection radiography system for an object at range z = - 3d/4, where d is the source-to-detector distance. What is the PSF of the extended source as a function of z? (b) In this same projection radiography system, the intensifier screen causes a blurring that can be modeled as h2(x). Find the MTF of the overall blurring as a function of source magnification, m. (c) What is the FWHM of the system as a function of m? ERRATA: * Page 177: In Problem 5.12, the second 1-D function listed in the problem description should have the subscript 2, not 1. In other words, the displayed equation should look like this: h1(x) = e-x25 h2(x) = e-x210