| 摘要 |
PROBLEM TO BE SOLVED: To shorten the total imaging time and a reconstructing and calculating time, by reducing the number of imaging sheets, while suppressing the reduction of the detailed degree of internal structure data corresponding to the feature of a subject, when the subject, markedly changed in a projection image with respect to angular displacement especially by an angle phase, is imaged. SOLUTION: When the subject 30, markedly changed in the projection is imaged with respect to the angular displacement by the angle phase, the angular displacement of rotary means is set small only in the angle phase, wherein the change of the projection image with respect to the angular displacement is large and the angular displacement of the rotary means is largely set in the angle phase, wherein the change of the projection image with respect to the angular displacement is small for photographing the subject. With this constitution, the subject can be photographed, by reducing the angular displacement only with respect to the really required angle, range and an increase in the number of imaging sheets can be suppressed. COPYRIGHT: (C)2006,JPO&NCIPI
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