UNC-CH PHYSICS AND ASTRONOMY PhD DEFENSE
Kenneth MacCabe, UNC-Chapel Hill
“X-ray scatter tomography using coded apertures”
Conventional x-ray tomography reconstructs an electron density distribution by measuring a set of line integrals known as the x-ray transform, based physically on the attenuation of incident rays. More recently, scatter imaging has emerged as an alternative to attenuation imaging by measuring radiation from coherent and incoherent scattering effects. The information-rich scatter signal may be used to infer density as well as molecular structure throughout a volume. In this presentation, various tomographic scatter imaging systems employing coded apertures are proposed, analyzed, and demonstrated.