X-ray imaging apparatus

Details X-ray imaging apparatus X-ray imaging apparatus

2007-12-03

2009-08-18

Kiknadze, Irakli (Department: 2882)

X-ray or gamma ray systems or devices

Beam control

Collimator

C378S208000

Reexamination Certificate

active

07577237

ABSTRACT:
When a tabletop is rolling, an aperture specifying unit calculates an aperture of diaphragm blades such that a radiation field is to be R′ based on a rolling angle, where R′ is a radiation field having the same radiation area of X-rays after tabletop rolling as a radiation area before the tabletop rolling. The aperture specifying unit instructs a beam-limit control unit to take the calculated aperture of the diaphragm blades in an X-ray beam limiting device. Then, the beam-limit control unit controls the aperture of the diaphragm blades such that the radiation field is to be R′.

REFERENCES:
patent: 5734692 (1998-03-01), Seki
patent: 7016455 (2006-03-01), Bruder et al.
patent: 2001/0019599 (2001-09-01), Guendel

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