Identification system for X-ray sensitive film

X-ray or gamma ray systems or devices – Auxiliary data acquisition or recording

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Details

378165, 378204, G03B 1726

Patent

active

053944569

ABSTRACT:
A marker for forming identifying indicia on X-ray film is comprised of two overlapping layers of material which define a predetermined shape, with a first layer of material having first predetermined X-ray absorbing characteristics, and-a second layer of material having second X-ray absorbing characteristics complementary to the X-ray absorbing characteristics of the first material, such that the combination of the two layers block a sufficient portion of the X-rays imparted to the X-ray film to form an identifying indicia on the X-ray film having good contrast. The combination of the two layers of material block a substantially greater portion of the X-rays than that blocked by either of the two materials alone. A plurality of indicia-defining layers of material are encapsulated within a clear encapsulating material having magnetic engaging means, whereby a single marker having a plurality of identifying indicia may be easily picked up and engaged with the platen containing the X-ray film.

REFERENCES:
patent: 3518428 (1970-06-01), Ring
patent: 4035653 (1977-07-01), Karasko
patent: 4764948 (1988-08-01), Hurwitz

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