| 摘要 |
<p>A discharging portion of an X-ray generator using an X-ray tube of one-side earthing, i.e., the anode or cathode is earthed is identified on the basis of the tube voltage detected value and the tube current detected value. For the identification, the X-ray generator comprises a device comprising tube voltage decrease slope calculating means (S4) for calculating the slope of decrease with time of the tube voltage detected value, tube current increase calculating means (S4) for calculating the increase of the tube current detected value in a predetermined time, first judging means (S5) for judging whether or not the slope of the calculated tube voltage decrease exceeds its allowable value, second judging means (S6) for judging whether or not the increase of the calculated tube current exceeds its allowable value, and discharge portion identifying means (S7, S8) for identifying the discharging portion which is in the X-ray tube or a high-voltage generating unit on the basis of the results of the judgments made by the first and second judging means. The identified discharging portion is displayed on display means (S9). Therefore, provided is a small-sized high-reliable X-ray generator having a function of identifying a discharging portion with high accuracy.</p> |
