Radiography system

Details Radiography system Radiography system

2006-06-20

2008-08-19

Song, Hoon (Department: 2882)

X-ray or gamma ray systems or devices

Accessory

Alignment

C378S147000

Reexamination Certificate

active

07413344

ABSTRACT:
An object of the present invention is to provide a radiography system in which an FOV in a light field agrees with an FOV in an X-ray field irrespective of a displacement of a light source. The radiography system comprises an X-ray tube, a collimator that forms an X-ray beam to be irradiated from the X-ray tube to an object of radiography, and a light source that irradiates light, which is used for ranging, to the object of radiography via the collimator. The radiography system further comprises a memory in which the magnitude of a displacement of the light source calculated in advance is stored, and a control unit that controls the opening of the collimator on the basis of the position of the light source, which is corrected based on the magnitude of a displacement read from the memory, so that an FOV of light to be used for ranging will agree with a target value.

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patent: 55-115001 (1980-09-01), None

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