Abstract
The main purpose this paper is rapid starting-up the X-ray power generators for animals such as horse and dog . X-ray is generated by making electron collide against the target in X-ray tube. The conventional control system in X-ray generator preheats the filament of the X-ray tube to speed-up the tube current Ip before it applies tube voltage Vp. However, the conventional X-ray power generator needs a few seconds as the boot time to generate X-rays by preheats , then photograph blur happen when animal moved. Therefore, rapid starting-up of the X-ray power generators is needed. It need the property of X-ray tube to achieve rapid starting-up of the X-ray power generators, but the detail of X-ray tube has never been clarified.X-ray tube has two states; the temperature limited state and the space-charge limited state. We have already found another state having characteristics of both the two states. And we have also discovered the requirement that the tube current Ip can start-up with highspeed. We proposed the new control method to rapid start-up the tube current Ip and tube voltage Vp in the X-ray tube, and explained the effectiveness of the control method from our analysis.
