X-ray diagnosis apparatus and disinfection method using x-ray diagnosis apparatus

An x-ray diagnosis apparatus, comprising:

• an x-ray tube holder configured to hold an x-ray tube;
• a supporter configured to movably support the x-ray tube holder;
• a plurality of ultraviolet ray emitters configured to emit ultraviolet rays and disposed on the x-ray tube holder;
• a contact portion detector configured to detect a contact portion touched by a subject of detection, which is at least one of a subject of examination and an examination technician;
• and
• an irradiation controller configured to control the supporter to move the x-ray tube holder to a position corresponding to the contact portion, and configured to control the plurality of ultraviolet ray emitters to emit the ultraviolet rays toward the contact portion, wherein
• the contact portion detector is further configured to detect a contact time during which the subject of detection touches the contact portion,
• the irradiation controller is further configured to control the plurality of ultraviolet ray emitters to emit the ultraviolet rays based on an irradiation time corresponding to the detected contact time,
• the irradiation time is set to be elongated as the detected contact time becomes longer,
• the plurality of ultraviolet ray emitters is arranged around an x-ray emission window of the x-ray tube holder, and
• the contact portion detector is further configured to obtain pressure values detected by a plurality of pressure sensors disposed on a bed, and detect the contact portion based on the detected pressure values.