Imaging system for obtaining X-ray energy subtraction images

Details Imaging system for obtaining X-ray energy subtraction images Imaging system for obtaining X-ray energy subtraction images

1988-11-30

1990-07-31

Church, Craig E.

X-ray or gamma ray systems or devices

Electronic circuit

Exposure timer

378156, 378 82, H05G 164

Patent

active

049455524

ABSTRACT:
An energy subtraction image measuring system for selectively depicting any target element using X-rays includes an X-ray filter containing the target element. It measures an X-ray image by using a quasi-monoenergetic X-ray beam obtained without using the filter and having a photon energy range that extends above and below the absorption edge of the target element, as well as an X-ray image using an X-ray beam containing only the photon energy component having photon energy levels lower than the absorption edge which is obtained by using the filter. The energy subtraction image measuring system then generates an energy substraction image by the operation of the thus obtained data.

REFERENCES:
patent: 3894181 (1975-07-01), Mistretta et al.
patent: 3924133 (1975-12-01), Reiss
patent: 4432370 (1984-02-01), Hughes et al.
patent: 4482918 (1984-11-01), Keyes et al.
patent: 4611341 (1986-09-01), Brody
patent: 4736398 (1988-04-01), Graeff et al.

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