Biomaterial Database

Focal-spot separation in stereoscopic magnification radiography. 1981

M Takahashi, and Y Ozawa, and H Takemoto

Mathematical formulas relating focal-spot separation to various geometric factors in magnification radiography are presented. Focal-spot separation is closely related to the magnification factor, focal-spot/film distance, viewing distance, and object size. When the viewing distance is equal to the focal-spot/film distance, separation is inversely proportional to magnification.

UI	MeSH Term	Description	Entries
D008433	Mathematics	The deductive study of shape, quantity, and dependence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)	Mathematic
D008962	Models, Theoretical	Theoretical representations that simulate the behavior or activity of systems, processes, or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.	Experimental Model,Experimental Models,Mathematical Model,Model, Experimental,Models (Theoretical),Models, Experimental,Models, Theoretic,Theoretical Study,Mathematical Models,Model (Theoretical),Model, Mathematical,Model, Theoretical,Models, Mathematical,Studies, Theoretical,Study, Theoretical,Theoretical Model,Theoretical Models,Theoretical Studies
D011858	Radiographic Magnification	Use of optic and geometric techniques to enhance radiographic image quality and interpretation. It includes use of microfocal X-ray tubes and intensifying fluoroscopic screens.	Magnification, Radiographic,Magnifications, Radiographic,Radiographic Magnifications
D000792	Angiography	Radiography of blood vessels after injection of a contrast medium.	Arteriography,Angiogram,Angiograms,Angiographies,Arteriographies