A practical method to calibrate the slant angle of central X-ray for laminography scanning system

Min Yang; Jianhua Zhu; Qi Liu; Shengling Duan; Lihong Liang; Xingdong Li; Wenli Liu; Fanyong Meng

doi:10.1016/j.ndteint.2014.02.004

A practical method to calibrate the slant angle of central X-ray for laminography scanning system

Min Yang^*
, Jianhua Zhu
, Qi Liu
, Shengling Duan
, Lihong Liang
, Xingdong Li
, Wenli Liu
, Fanyong Meng

^*此作品的通讯作者

机械工程及自动化学院

Beihang University
China Special Equipment Inspection and Research Institute
National Institute of Metrology China
CAS - Institute of Process Engineering

科研成果: 期刊稿件 › 文章 › 同行评审

21 引用（Scopus）

摘要

Computed laminography (CL) has a particular function in plate-type structure tomography. For CL reconstruction, slant angle of the central X-ray is an important parameter and must be calibrated accurately. A practical feasible calibration method to determine the slant angle is proposed. According to this method, a spherical phantom is fixed on the rotary table and turns a full 360 rotation. Then, image processing and the least-square fitting are performed to figure out the locus of the projection. Consequently, the slant angle is achieved in accordance with the property of the fitted ellipse. The experimental results prove that this method is easy to implement and meet the inspection requirements.

源语言	英语
页（从-至）	13-20
页数	8
期刊	NDT and E International
卷	64
DOI	https://doi.org/10.1016/j.ndteint.2014.02.004
出版状态	已出版 - 6月 2014

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10.1016/j.ndteint.2014.02.004

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@article{391ba84126c7492e83f3a0ec92e46642,

title = "A practical method to calibrate the slant angle of central X-ray for laminography scanning system",

abstract = "Computed laminography (CL) has a particular function in plate-type structure tomography. For CL reconstruction, slant angle of the central X-ray is an important parameter and must be calibrated accurately. A practical feasible calibration method to determine the slant angle is proposed. According to this method, a spherical phantom is fixed on the rotary table and turns a full 360 rotation. Then, image processing and the least-square fitting are performed to figure out the locus of the projection. Consequently, the slant angle is achieved in accordance with the property of the fitted ellipse. The experimental results prove that this method is easy to implement and meet the inspection requirements.",

keywords = "Computed laminography (CL), Ellipse fitting, Geometrical calibration, Slant angle",

author = "Min Yang and Jianhua Zhu and Qi Liu and Shengling Duan and Lihong Liang and Xingdong Li and Wenli Liu and Fanyong Meng",

year = "2014",

month = jun,

doi = "10.1016/j.ndteint.2014.02.004",

language = "英语",

volume = "64",

pages = "13--20",

journal = "NDT and E International",

issn = "0963-8695",

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TY - JOUR

T1 - A practical method to calibrate the slant angle of central X-ray for laminography scanning system

AU - Yang, Min

AU - Zhu, Jianhua

AU - Liu, Qi

AU - Duan, Shengling

AU - Liang, Lihong

AU - Li, Xingdong

AU - Liu, Wenli

AU - Meng, Fanyong

PY - 2014/6

Y1 - 2014/6

N2 - Computed laminography (CL) has a particular function in plate-type structure tomography. For CL reconstruction, slant angle of the central X-ray is an important parameter and must be calibrated accurately. A practical feasible calibration method to determine the slant angle is proposed. According to this method, a spherical phantom is fixed on the rotary table and turns a full 360 rotation. Then, image processing and the least-square fitting are performed to figure out the locus of the projection. Consequently, the slant angle is achieved in accordance with the property of the fitted ellipse. The experimental results prove that this method is easy to implement and meet the inspection requirements.

AB - Computed laminography (CL) has a particular function in plate-type structure tomography. For CL reconstruction, slant angle of the central X-ray is an important parameter and must be calibrated accurately. A practical feasible calibration method to determine the slant angle is proposed. According to this method, a spherical phantom is fixed on the rotary table and turns a full 360 rotation. Then, image processing and the least-square fitting are performed to figure out the locus of the projection. Consequently, the slant angle is achieved in accordance with the property of the fitted ellipse. The experimental results prove that this method is easy to implement and meet the inspection requirements.

KW - Computed laminography (CL)

KW - Ellipse fitting

KW - Geometrical calibration

KW - Slant angle

UR - https://www.scopus.com/pages/publications/84896774633

U2 - 10.1016/j.ndteint.2014.02.004

DO - 10.1016/j.ndteint.2014.02.004

M3 - 文章

AN - SCOPUS:84896774633

SN - 0963-8695

VL - 64

SP - 13

EP - 20

JO - NDT and E International

JF - NDT and E International

ER -

A practical method to calibrate the slant angle of central X-ray for laminography scanning system

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