Consider two 1-D functions h1(x) = ex2/5 and h2(x) = ex2/10. (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?