G - Physics – 03 – B
Patent
G - Physics
03
B
95/74.5
G03B 42/02 (2006.01) G03B 42/04 (2006.01) G03C 5/17 (2006.01)
Patent
CA 2021068
44443CAN5A An Improved Cassette and Radiographic Film Combination ABSTRACT OF DISCLOSURE Cassette comprising a front element and a back ele- ment and a first intensifying fluorescent screen fixed, in the interior of said cassette, to said front element and a second intensifying fluorescent screen fixed, in the interior of said cassette, to said back element, to be used with a radiographic element situated between and in close contact with said screens. Said first intensifying screen comprises a first radiation emitting phosphor and said second intensifying screen comprises a second radiation emitting phosphor, and said first radiation emitted by said first intensify- ing screen are in a first wavelength region of the elec- tromagnetic spectrum and said second radiation emitted by said second intensifying screen are in a second wave- length region of the electromagnetic spectrum. The cassette is for use with a combination of photosensitive elements for radiography formed by the pair of intensifying screens and a double-side coated silver halide radiographic element. Each screen is ar- ranged adjacent to each silver halide layer, each screen is capable of imagewise emitting radiation to which the adjacent silver halide layer is sensitive when imagewise exposed to X radiation and each silver halide layer is substantially insensitive to the radiation emitted by the opposite screen. The combination of the cassette and the radiographic element according to this invention is characterized by the fact that the cassette presents in its interior an asymmetrical system of at least one protuberance and the radiographic element presents an asymmetrical system of at least one hole or notch which corresponds to said asymmetrical system of at least one protuberance, the correspondence between said asymmetrical systems being such that the radiographic element can fit and nest with- in the cassette only with said front screen directly fac- ing said front silver halide emulsion.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
Cassette and radiographic film combination does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cassette and radiographic film combination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cassette and radiographic film combination will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1473354