X-ray scanner & detector signal processing system

Details X-ray scanner & detector signal processing system X-ray scanner & detector signal processing system

1987-11-17

1988-11-29

Fields, Carolyn E.

X-ray or gamma ray systems or devices

Electronic circuit

Exposure timer

378 57, 358111, H05G 164, G01N 2304

Patent

active

047887044

ABSTRACT:
An X-ray device for scanning objects moving on a conveyor path and for processing the detector signals acquired by the scan has a comparator for identifying faulty signals, the comparator being in a control chain for an image storage memory such that, in the event of a faulty detector signal, the contents of a memory row preceding the faulty detector signal are transferred into the memory row into which the faulty detector signal, if a correct signal, would have been stored. The system also includes a correction element for generating a reference signal at 100% radiation intensity in which the mean value of a number of measured signals is formed. The system also includes an element for reducing the amplitude of the useful signal during measurement in comparison to the amplitude allocated to a radiation intensity of 100%.

REFERENCES:
patent: 3919467 (1975-11-01), Peugeot
patent: 3958078 (1976-05-01), Fowler et al.
patent: 4178510 (1979-12-01), Wagner
patent: 4366382 (1982-12-01), Kotowski
patent: 4383327 (1983-05-01), Kruger
patent: 4562470 (1985-12-01), Dihn et al.
"Automated X-Ray Bomb Detection Techniques," Bisognani et al., 8079 Etectro Conf. Record, vol. 4 (1979-04-24/26).
Heimann Brochure Entitled "Komponenten Der Pruftechnik", Aug. 20, 1984.

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