Optical pointer for radiographic apparatus

Details Optical pointer for radiographic apparatus Optical pointer for radiographic apparatus

1977-05-12

1979-01-02

Church, Craig E.

Radiant energy

Means to align or position an object relative to a source or...

G03B 4116

Patent

active

041329007

ABSTRACT:
A therapeutic radiographic apparatus includes a source of a pencil-like beam of penetrating radiation which requires to be positioned relative to a patient's body so that the radiation passes, at all times during therapy, through an anomaly, such as a tumor, in the patient's body. It is difficult to maintain coincidence of the beam with the anomaly, and this invention provides means for indicating optically a point of contact of the beam with the patient's body. The point of contact may, for example, be the point of emergence of the beam from the body.

REFERENCES:
patent: 2659824 (1953-11-01), Burnham
patent: 2887586 (1959-05-01), Reininger
patent: 3082322 (1963-03-01), Koerner

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