X-ray or gamma ray systems or devices – Beam control – Collimator
Patent
1995-02-06
1996-07-02
Wong, Don
X-ray or gamma ray systems or devices
Beam control
Collimator
378160, G21K 102
Patent
active
055330894
ABSTRACT:
The invention is an instrument comprising a unit having a frame defining the perimeter about an aperture, and a manually adjustable rack connected to the frame for supporting the unit with its aperture disposed between a source of x-rays and the body of a patient. Radio-opaque flexible panels depending from the frame are pivotable relative to the aperture to collimate and limit x-rays issuing from the source through the aperture to a particular area of the body of the patient. Translucent ports along lower edges of the panels serve to provide upon a photographic film below the patient a scale indication of the area of the body of the patient subjected to the x-rays.
REFERENCES:
patent: 2331586 (1943-10-01), Waisco
Garofalo Nicholas J.
Wong Don
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