ISSN 1004-4140
CN 11-3017/P
Volume 12 Issue 2
Jun.  2003
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YE Xia-juan, ZHANG Peng. Estimation of Energy Spectra of CT System And Beam-Hardening Correction Algorithm[J]. CT Theory and Applications, 2003, 12(2): 10-15.
Citation: YE Xia-juan, ZHANG Peng. Estimation of Energy Spectra of CT System And Beam-Hardening Correction Algorithm[J]. CT Theory and Applications, 2003, 12(2): 10-15.
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Estimation of Energy Spectra of CT System And Beam-Hardening Correction Algorithm

  • 1. Department of Mathematics, Northwest University, ChinaXi’an 710069; 2. Division of Applied Mathematics, Beijing Information Technology Institute, China Beijing 100101

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  • Received Date: April 17, 2003
  • Available Online: December 28, 2022
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    • Abstract
  • The authors present an algorithm which can estimate, by means of a standard cylinder or wedge model, the energy spectra of the CT system and the mass attenuation coefficient of the model at the same time. An algorithm on beam-hardening correction of CT image for single material object is presented as well. The simulation results show that the algorithm for estimation of the energy spectra can give a reasonable estimation of the energy spectra, and that beam-hardening correction algorithm is more precise than polynomial approximation correction algorithm and more rapid than common iterative algorithm.
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