X-ray or gamma ray systems or devices – Beam control – Antiscatter grid
Reissue Patent
2005-01-21
2011-10-18
Thomas, Courtney (Department: 2882)
X-ray or gamma ray systems or devices
Beam control
Antiscatter grid
C378S154000
Reissue Patent
active
RE042852
ABSTRACT:
The object of this invention is to provide an imaging apparatus capable of providing a high-quality image optimum for medical diagnosis or the like by an arrangement for preventing any degradation in image quality due to the influence of electromagnetic noise and vibration caused by grid movement. In order to achieve this object, as operation control in receiving radiation transmitted through an object by an image sensing element through a movable grid and reading the accumulated signal from the image sensing element, a control device stopsdelete-start id="REI-00001" date="20111018" ?moving drivedelete-end id="REI-00001" ?insert-start id="REI-00002" date="20111018" ?movementinsert-end id="REI-00002" ?of the grid after the end of radiation irradiation for the object, and afterdelete-start id="REI-00003" date="20111018" ?the stop of moving drivedelete-end id="REI-00003" ?insert-start id="REI-00004" date="20111018" ?stopping the movementinsert-end id="REI-00004" ?, starts reading the accumulated signal from the image sensing element.
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Japanese Office Action dated Jul. 29, 2008 on a corresponding counterpart Japanese Application No. 2005-089359.
Hirai Akira
Tamura Toshikazu
Yamazaki Tatsuya
Canon Kabushiki Kaisha
Cowan Liebowitz & Latman P.C.
Thomas Courtney
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