X-RAY APPARATUS

摘要

In an X-ray apparatus in which an FPD moves independently of an X-ray tube, an X-ray irradiation area discriminator discriminates, for separate X-raying actions, X-ray irradiation area images from among X-ray images outputted from the FPD. An X-ray tube position sensor acquires position information P on the X-ray tube for the separate X-raying actions. A long image creator creates a long image by shifting the X-ray irradiation area images based on the position information, and splicing the X-ray irradiation area images together. Therefore, even when a relative position between the X-ray tube and FPD is variable instead of being constant, the X-ray irradiation area images can be obtained reliably, and these can be spliced together with high accuracy. There is no need to uniform starting timing and moving speed of the X-ray tube and FPD, which simplifies control.

主权项

1. An X-ray apparatus comprising:
an X-ray source for emitting X-rays toward an inspection object; an X-ray source mover for moving the X-ray source along a body axis of the inspection object; an X-ray detector disposed opposite the X-ray source for detecting X-rays transmitted through the inspection object and outputting them as X-ray images; an X-ray detector mover for moving the X-ray detector along the body axis of the inspection object independently of the X-ray source; a collimator disposed on an X-ray emitting side of the X-ray source to be movable with the X-ray source for contracting emitted X-rays to an area narrower than a detecting area of the X-ray detector in a direction of movement of the X-ray detector; an X-ray irradiation area discriminator for discriminating, for separate X-raying actions, X-ray irradiation area images which are areas of the X-ray images where collimated X-rays are received; a position information acquirer for acquiring position information on the X-ray source for the separate X-raying actions; and a long image creator for creating a long image by shifting the X-ray irradiation area images based on the position information so that a center of each of the X-ray irradiation area images in the direction of movement of the X-ray detector coincide with a position of X-ray incidence at a time of radiography, and by splicing the X-ray irradiation area images together.