title: Grazing incidence tomography.
abstract: The potentialities of photographic transaxial tomographic methods are discussed. It is shown that unfiltered, transaxial tomographic summation images can yield high-quality tomograms of high-contrast objects. A direct and efficient photographic method for recording transaxial tomograms (grazing incidence tomography) is demonstrated, and various means for analog filtering are discussed. Grazing incidence tomography allows for high geometrical resolution for high- or medium-contrast objects. The present contrast performance is an order of magnitude different to that of computerised tomography, but an improvement of the method seems possible.
mesh_terms: D005069:Evaluation Studies as Topic; D010781:Photography / Q000379:methods*; D014054:Tomography / Q000379:methods*; D014057:Tomography, X-Ray Computed; D014986:Xeroradiography