X-ray or gamma ray systems or devices – Photographic detector support – For plural exposures on single film or plate
Patent
1990-06-27
1992-04-21
Howell, Janice A.
X-ray or gamma ray systems or devices
Photographic detector support
For plural exposures on single film or plate
378167, 378205, G03B 4202
Patent
active
051075318
ABSTRACT:
The present invention is especially suited for tomographic X-ray studies wherein dozens of exposures are required. A film cassette spacer having selected dimensions and having selected markings thereon is placed adjacent to the film cassette on a mechanically centering bucky tray in an X-ray machine. By use of the collimating means in the X-ray head, the number of exposures on the film can be maximized but still maintaining quality exposures for reading.
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patent: 1219965 (1917-03-01), Leisenring
patent: 2063878 (1936-12-01), Linke et al.
patent: 2111903 (1938-03-01), Rona
patent: 2545899 (1951-03-01), Soba
patent: 3959656 (1976-05-01), Peters
patent: 3976887 (1976-08-01), Holzermer et al.
Collier Stanton E.
Howell Janice A.
Singer Donald J.
Wong Don
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