Scanning equalization radiography with stationary equalization d

Details Scanning equalization radiography with stationary equalization d Scanning equalization radiography with stationary equalization d

1988-10-21

1990-08-07

Church, Craig E.

X-ray or gamma ray systems or devices

Beam control

Scanner

2503851, 378150, 378151, G21K 510

Patent

active

049474162

ABSTRACT:
A scanning type radiographic imaging system is disclosed which employs novel means to produce comparable radiation intensity in the object regions being radiographed. Such result is achieved with variable radiation attenuating elements having their attenuation controlled during this scanning process with novel feedback control means. The feedback control is produced with a stationary detection unit having circuit means which generates the electrical control signals.

REFERENCES:
patent: 4310766 (1982-01-01), Finkenzeller et al.
patent: 4366574 (1982-12-01), Hill
patent: 4404591 (1983-09-01), Bonar
patent: 4433427 (1984-02-01), Barnea
patent: 4504962 (1985-03-01), Moore
patent: 4675893 (1987-06-01), Duinker
patent: 4677652 (1987-06-01), Duinker et al.
patent: 4715056 (1987-12-01), Vlasbloem et al.

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