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In contrast to the saddle curve cone\u2010beam scanning, the proposed scanning mode requires that the X\u2010ray focal spot undergoes a circular motion in a plane facing the short object, while the X\u2010ray source is rotated in the gantry main plane. Because of the symmetry of the proposed mechanical rotations and the compatibility with the physiological conditions, this new mode has significant advantages over the saddle curve from perspectives of both engineering implementation and clinical applications. As a feasibility study, a backprojection filtration (BPF) algorithm is developed to reconstruct images from data collected along a composite\u2010circling trajectory. 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