| 摘要 |
<p>An X-ray tube adjustment apparatus (7) has a storage unit (72) containing an initial image (an image of a slit plate (5) imaged when adjusted to the optimal focal point diameter). An acquisition unit (74) acquires a test image (an image of the slit plate (5) imaged upon adjustment of the focal point diameter). A display unit (76) simultaneously displays an initial image together with an image representing the luminance in the initial image (indicating the contrast Δa between the slit portion 764a in the initial image and the residual region portion 766a) and the test image together with an image representing the luminance in the test image (indicating the contrast Δb between the slit portion 764b in the test image and the residual region portion 766b)(in such a manner that they can be compared to each other).</p> |
