X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Patent
1987-05-29
1988-06-14
Howell, Janice A.
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
378 88, G01N 23201
Patent
active
047517220
ABSTRACT:
The invention relates to an X-ray apparatus which allows for the determination of the elastically scattered X-rays and the evaluation of the information contained therein. Because the scattered radiation exhibits a pronounced maximum value as a function of the scatter angle and because the scatter angle at which this maximum value occurs depends on the material in which the scattered radiation is produced, X-ray images thus formed contain essential information concerning the chemical composition of the body examined.
REFERENCES:
patent: 3936638 (1976-02-01), Gibbons
patent: 3965353 (1976-06-01), Macovski
patent: 4228353 (1980-10-01), Johnson
patent: 4342916 (1982-08-01), Jatteau et al.
patent: 4384209 (1983-05-01), Wagner et al.
Fenster, Aaron, "Split Xenon Detector for Tomochemistry in Computed Tomography", Journal of Computer Assisted Tomography, 1978, Jul., pp. 243-252.
Harding Geoffrey
Kosanetzky Josef M.
Neitzel Ulrich
Ypma Peter
Haken Jack E.
Howell Janice A.
U.S. Philips Corporation
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