X-ray diagnostic apparatus and X-ray diagnostic method including switching an X-ray generator from an abnormal high voltage generator to a normal high voltage generator

An X-ray diagnostic apparatus comprising:

• X-ray generators including a first X-ray generator and a second X-ray generator;
• X-ray detectors corresponding to said X-ray generators;
• high voltage generators configured to apply voltages to said X-ray generators;
• a switching device configured to switch outputs from said high voltage generators to said X-ray generators, the high voltage generators including a first high voltage generator and a second high voltage generator;
• an abnormality detection unit configured to detect an abnormality in said high voltage generators;
• and
• a control unit configured to control said switching device to switch from an output from the first high voltage generator, of which an abnormality has been detected by said abnormality detection unit, toward the first X-ray generator, to an output from the second high voltage generator toward the first X-ray generator,
• wherein said control unit is further configured to control said switching device to switch from an output from the first high voltage generator toward the first X-ray generator to an output from at least the second high voltage generator powering the second X-ray generator toward the first X-ray generator when an abnormality in power toward the first high voltage generator powering the first X-ray generator is detected by said abnormality detection unit, the second X-ray generator being different from the first X-ray generator.