Method and arrangement for gripping X-ray film

Details Method and arrangement for gripping X-ray film Method and arrangement for gripping X-ray film

1981-08-07

1983-11-29

Smith, Alfred E.

X-ray or gamma ray systems or devices

Photographic detector support

Sheet film cassette

378171, G03B 4116

Patent

active

044184204

ABSTRACT:
X-ray film in a cassette or camera is magnetically gripped by a pair of magnetic units which engage opposite sides of the film. Each of the units includes a sheet of magnetic material and an intensifying screen located on that side of the associated magnetic sheet which faces the other unit. The units have cooperating first portions which engage a first region of the film and cooperating second portions which engage a second region of the film. The units are designed in such a manner that the magnetic force of the second portions exceeds that of the first portions so that the second region of the film is gripped more strongly than its first region. Furthermore, the units are arranged such that the second portions thereof engage the film no later than the first portions thereof. In this manner, entrapment of air bubbles on the surface of the film is prevented and image quality is improved.

REFERENCES:
patent: 2590891 (1952-04-01), Reuter

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