Exit beam indicator for radiographic equipment

Details Exit beam indicator for radiographic equipment Exit beam indicator for radiographic equipment

1984-09-12

1986-10-21

Church, Craig E.

X-ray or gamma ray systems or devices

Accessory

Alignment

378205, A61B 608

Patent

active

046189807

ABSTRACT:
An indicator for indicating a dimension of an X-ray beam defined by a collimator has a base member positioned on the other side of the patient from the X-ray beam source. A pair of light sources are mounted on the base member for linear movement and for angular movement so that the beams of light may be positioned into congruency with the edges of the X-ray field defined by the collimator and converge at the source of the X-ray beam. The light sources may be moved by a cable having selectively movable segments to which the light sources are attached or by lead screws.

REFERENCES:
patent: 3473024 (1969-10-01), Feiertag
patent: 4167675 (1979-09-01), Stodberg et al.
patent: 4337502 (1982-06-01), Lescrenier

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