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A practical method to calibrate the slant angle of central X-ray for laminography scanning system
Alternative TitleNDT E Int.
Yang, Min1; Zhu, Jianhua1; Liu, Qiu1; Duan, Shengling1; Liang, Lihong2; Li, Xingdong3; Liu, Wenli3; Meng, Fanyong4
2014-06-01
Source PublicationNDT & E INTERNATIONAL
ISSN0963-8695
Volume64Issue:1Pages:13-20
AbstractComputed 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. (C) 2014 Elsevier Ltd. All rights reserved.; 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. (C) 2014 Elsevier Ltd. All rights reserved.
KeywordComputed Laminography (Cl) Geometrical Calibration Slant Angle Ellipse Fitting
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.ndteint.2014.02.004
URL查看原文
Indexed BySCI
Language英语
WOS KeywordCONE-BEAM CT ; COMPUTED-TOMOGRAPHY ; RECONSTRUCTION ; PARAMETERS ; PROJECTION ; GEOMETRY
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Characterization & Testing
WOS IDWOS:000335873700003
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11008
Collection研究所(批量导入)
Affiliation1.Beijing Univ Aeronaut & Astronaut, Sch Mech Engn & Automat, Beijing 100191, Peoples R China
2.China Special Equipment Inspect & Res Inst, Beijing 100013, Peoples R China
3.Natl Inst Metrol, Beijing 100013, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Yang, Min,Zhu, Jianhua,Liu, Qiu,et al. A practical method to calibrate the slant angle of central X-ray for laminography scanning system[J]. NDT & E INTERNATIONAL,2014,64(1):13-20.
APA Yang, Min.,Zhu, Jianhua.,Liu, Qiu.,Duan, Shengling.,Liang, Lihong.,...&Meng, Fanyong.(2014).A practical method to calibrate the slant angle of central X-ray for laminography scanning system.NDT & E INTERNATIONAL,64(1),13-20.
MLA Yang, Min,et al."A practical method to calibrate the slant angle of central X-ray for laminography scanning system".NDT & E INTERNATIONAL 64.1(2014):13-20.
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