Procedure for measuring the dimensions of the optical focus of a

Details Procedure for measuring the dimensions of the optical focus of a Procedure for measuring the dimensions of the optical focus of a

1995-12-15

1997-02-25

Church, Craig E.

X-ray or gamma ray systems or devices

Accessory

Testing or calibration

378 91, G01D 1800

Patent

active

056065914

ABSTRACT:
A method of measuring the dimensions of the optical focus of an X-ray tube is described which consists of producing an X-ray image of the optical focus on a fine-grained X-ray-sensitive film, illuminating the radiogram obtained by means of a lamp emitting homogeneous radiation and taking a video image of the radiogram by means of a video camera, processing the video image so as to obtain a digitized image of the optical focus, and measuring the dimensions of the optical focus from the digitized image obtained.

REFERENCES:
patent: 4442539 (1984-04-01), Aichinger
patent: 4979199 (1990-12-01), Cueman et al.
Physics in Medicine and Biology, vol. 18, No. 4, pp. 540-549, Jul. 1973, A. Arnold, et al., "A Modified Pinhole Camera Method for Investigation of X-ray Tube Focal Spots".

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