title: Runout error correction in tomographic reconstruction by intensity summation method.
abstract: An alignment method for correction of the axial and radial runout errors of the rotation stage in X-ray phase-contrast computed tomography has been developed. Only intensity information was used, without extra hardware or complicated calculation. Notably, the method, as demonstrated herein, can utilize the halo artifact to determine displacement.
authors: Department of Physics, POSTECH, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea.
authors: Ik Hwan
authors: IH
authors: Kwon
authors: Beamline Division, Pohang Light Source, 127 Jigok-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea.
authors: Jun
authors: J
authors: Lim
authors: Department of Physics, POSTECH, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea.
authors: Chung Ki
authors: CK
authors: Hong
keywords: halo artifact; imaging alignment; runout error; tomography