title: Blurring and layer thickness in narrow beam rotation radiography.
abstract: The definition of the blurring of narrow beam rotation radiography is revived. The relative value of the blurring is considered to be the most reliable measurement. Calculations of the layer thickness should be based on the definition of the relative blurring. Experimental tests were performed, which confirm the mathematically presented hypothesis and also confirm the validity of the mathematical model of narrow beam rotation radiography presented by WELANDER (1974).
mesh_terms: D008433:Mathematics; D011862:Radiography, Panoramic / Q000295:instrumentation; D013679:Technology, Radiologic