Tomographic scanner

Details Tomographic scanner Tomographic scanner

1977-11-15

1982-07-13

Krass, Errol A.

Boots, shoes, and leggings

250445T, 364515, G06F 1542, G01N 2100

Patent

active

043397999

ABSTRACT:
A method and apparatus for examining relative movement of two masses of different radiation attenuation characteristics, separated by a boundary and moving relative to one another over a repetitive motion cycle. The masses are examined from a plurality of successive angles about a common center of rotation. The object is scanned over each motion cycle from each of these angles to derive a plurality of attenuation coefficients encompassing the entire motion cycle. A plurality of differential points is calculated between adjacent scans of a single motion cycle, and a single composite image of all of these differential points is reconstructed for each individual time period of each motion cycle for display.

REFERENCES:
patent: 3924129 (1975-12-01), Le May
patent: 3936636 (1976-02-01), Percival
patent: 3976827 (1976-08-01), Alien et al.
patent: 4029948 (1977-06-01), Hounsfield
patent: 4029963 (1977-06-01), Alvarez et al.
patent: 4068306 (1978-01-01), Chen et al.
patent: 4074564 (1978-02-01), Anderson

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