Evaluation of the measurement geometries and data processing algorithms for industrial gamma tomography technology

被引：9

作者：

Lee, N. Y. ^{[1
]}

Jung, S. H. ^{[1
]}

Kim, J. B. ^{[1
]}

机构：

[1] Korea Atom Energy Res Inst, Radioisotope Res Div, Taejon 305353, South Korea

来源：

APPLIED RADIATION AND ISOTOPES | 2009年 / 67卷 / 7-8期

关键词：

Industrial process diagnosis; Gamma radiation; Industrial gamma CT system;

D O I：

10.1016/j.apradiso.2009.02.046

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this paper, we evaluated the measurement geometries and data processing algorithms for industrial gamma tomography technology. Several phantoms simulating industrial objects were tested in various conditions with the gamma-ray CT system developed in KAERI (Korea Atomic Energy Research Institute). Radiation was measured with lead shielded 24 1 x 1 in Nal detectors. Regarding the parallel beam geometry, the EM algorithm showed the best resolution among the algebraic reconstruction technique (ART), simultaneous iterative reconstructive technique (SIRT) and expectation maximization (EM). However, the fan beam scanning was more time efficient than the parallel projection for the similar quality of reconstructed image. Future developments of the industrial gamma ray CT will be focused on a large-scale application which is more practical for a diagnosis in the petrochemical industry. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1441 / 1444

页数：4

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