Radiation tomography method and apparatus
AssigneeFuji Photo Film Co., Ltd.
InventorSatoshi Arakawa
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Abstract
A radiation tomography for photographing a radiation projected image of a subject by relatively rotating a radiation source which emits a conical radiation beam and a detector which detects the conical radiation beam transmitted through the subject, with respect to the subject. The radiation tomography apparatus includes a detection unit which detects a periodic motion of a part of the subject to be photographed and a controller which controls the radiation source so that in synchronism with the detection, a timing of emitting the cone radiation beam is synchronized with constant timing at which the detected part moves.
Claims10
A method of radiation tomography for photographing a radiation projected image of a subject by relatively rotating a radiation source which emits a conical radiation beam and a detector which detects said conical radiation beam transmitted through said subject, with respect to said subject, said radiation tomography comprising the steps of:
- detecting a periodic motion of a part of said subject to be photographed;
- and
- controlling said radiation source so that in synchronism with the detection, a timing of emitting said conical radiation beam is synchronized with constant timing at which the detected part moves;
- and
- wherein said radiation source and said detector are rotated with respect to said subject using a plurality of short intervals.
A radiation tomography apparatus used in photographing a radiation projected image of a subject by relatively rotating a radiation source which emits a conical radiation beam and a detector which detects said conical radiation beam transmitted through said subject, with respect to said subject, said radiation tomography apparatus comprising:
- detection means for detecting a periodic motion of a part of said subject to be photographed;
- and
- control means for controlling said radiation source so that in synchronism with the detection, a timing of emitting said cone radiation beam is synchronized with constant timing at which the detected part moves;
- and
- wherein said radiation source and said detector are rotated with respect to said subject using a plurality of short intervals.
Dependencies are inferred from the claim text.