Request for those skilling in locating odd bits-

I have found myself with the need to repair a PDP 11 controlled X-ray diffraction machine, used for crystal studies. I don't need any PDP bits, as the computer and everything like that works fine. What I do need to find is an affordable and happy x-ray generator. I'm pretty new to this whole thing, which is why I ask here. The machine is kind of on-topic, seeing that it is > 15 years old. I am trying to modify this machine to do more than it was originally intended, and therefore save it from being junked, and to do this I need a pretty stable x-ray generator. The one on the machine has a broken high voltage tank, and replacements are prohibitively expensive, along with the fact that I have very little experience working on really high voltage equipment. I am looking for a real x-ray generator- Modifying kitchen appliances or using thyratrons coated with magnesium won't due. I have x-ray tubes and all the rest, but the power supply is the toasted bit. Thanks! Greg Linder