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Figure 1
Schematic diagram of the typical acquisition geometry for XFCT, where (i, j) represents the pixel located at the ith row and jth column of the pixel matrix, (m, n) represents the nth projection line at the mth projection angle, Δd and Δdq (q = 1, 2, 3, 4) are the vertical distances from the pixel centre and the centre of a quarter section to the line (m, n), respectively. d is the size of the pixel. L denotes the distance from point P(s, t) to the edge of the object. γmin–γmax is the range of the solid angle at which point P(s, t) is viewed by the detector.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 19| Part 2| January 2012| Pages 210-215
doi:10.1107/S0909049511052253
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