Film recording mark for X-ray photography
Abstract
Abstract Translated from Japanese (57)【要約】 【目的】水平面に対して何度の角度でX線撮影されたの かをフィルム面に写し込むことができるX線撮影用のフ ィルム記録マークを提供することにある。 【構成】X線撮影機器の透視台やフィルムカセッテ等の マーク写込み部にセットして使用するX線撮影用のフィ ルム記録マークであって、半球状の凹部内面2a及び凸 部外面3aで画定される円弧状断面の内腔4を有し全体 がX線透過材料で形成されたマーク本体1と、このマー ク本体1の内腔4に半球状の凹部内面2aに沿って自由 に移動できるように遊封されたX線不透過の金属球10 と、X線不透過金属で形成され前記マーク本体1の底面 部に内腔端環状部4bの略中心線上に位置する平面配列 で等角度間隔に埋設固定された複数個の角度目盛子12 とを具備する。 (57) [Abstract] [Purpose] To provide a film recording mark for X-ray photography, which can imprint on a film surface how many angles the X-ray was photographed with respect to a horizontal plane. [Structure] A film recording mark for X-ray photography, which is used by being set on a mark imprinting portion such as a transparent table or a film cassette of an X-ray photographing device, and is defined by a hemispherical concave inner surface 2a and convex outer surface 3a. A mark body 1 having an inner cavity 4 with an arcuate cross section and formed entirely of an X-ray transmissive material, and an inner cavity 2 of the mark body 1 so as to be freely movable along a hemispherical concave inner surface 2a. X-ray impermeable metal ball 10 And a plurality of angle graduations 12 formed of an X-ray opaque metal and embedded and fixed in a bottom surface of the mark main body 1 at equal angular intervals in a plane arrangement located substantially on the center line of the lumen end annular portion 4b. And.
Inventors
- 👤 Hiroshi Sugita
- 👤 博司 杉田
- 👤 Hirotoshi Sugita
- 👤 博俊 杉田
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