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Calibration and response of an EMI scanner. 1976

R A Rutherford, and B R Pullan, and I Isherwood

Computed tomography provides a measurement of the linear absorption coefficient of material in vivo. The precision and accuracy of the measurements of this parameter made by the EMI scanner have been investigated at all three recommended voltage settings of the machine. The relationship between the EMI number and the linear absorption coefficient was found to be linear despite the polychromatic nature of the X-ray beam. The spatial resolution of the machine and the response to materials at different depths within the section have also been investigated.

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
D003201 Computers Programmable electronic devices designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations. Calculators, Programmable,Computer Hardware,Computers, Digital,Hardware, Computer,Calculator, Programmable,Computer,Computer, Digital,Digital Computer,Digital Computers,Programmable Calculator,Programmable Calculators
D014056 Tomography, X-Ray Tomography using x-ray transmission. Tomography, Transmission,X-Ray Tomography,Zonography,Radiographic Tomography,Tomography, Radiographic,Tomography, X Ray,Tomography, Xray,Transmission Tomography,X Ray Tomography,Xray Tomography

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