X-RAY COMPUTED TOMOGRAPHY APPARATUS AND PHOTON COUNTING CT APPARATUS
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United States of America Patent
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app pub date -
Jun 16, 2015
filing date -
Jan 6, 2014
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Abandoned
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Abstract
A gantry includes an X-ray source ring and a detector ring. The X-ray source ring includes a plurality of X-ray sources arrayed circumferentially. The detector ring is provided next to the X-ray source ring and includes a plurality of X-ray detectors arrayed circumferentially. Each of the plurality of X-ray detectors detects X-rays from the X-ray source ring. At least one wedge filter is provided on the inner circumferential side of the X-ray source ring. A filter support member supports at least one wedge filter rotatable about the rotation axis. A filter driver drives the filter support member. An imaging controller controls the filter driver to rotate at least one wedge filter about the rotation axis in synchronism with generation of X-rays from the X-ray source ring.
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