Patent ID: 11896409
Assignee: CANON MEDICAL SYSTEMS CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 4:
5. An X-ray diagnosis apparatus, comprising:
an X-ray tube configured to have a plurality of focal points and configured to emit X-rays from each focal point;
a radiation quality filter configured to change radiation quality of the X-rays emitted from each of the focal points;
a mover configured to move the radiation quality filter in a direction along which the focal points are aligned; and
a controller configured to control the mover so as to position the radiation quality filter at a filter position corresponding to each of the focal points, wherein
the radiation quality filter includes a plurality of sub-radiation quality filters each being formed of a different material; and
the mover moves the radiation quality filter including the sub-radiation quality filters.