Basis material selection principle for high energy X-ray basis material decomposition method

Zhang Yulong; Li Liang; Chen Huaibi

doi:10.3788/HPLPB201426.025101

Volume 26 Issue 02

Jan. 2014

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Article Navigation > High Power Laser and Particle Beams > 2014 > 26(02): 025101

Wang Ling, Wang Xin, Mu Baozhong, et al. Influence of mounting stress on the surface shape of Schwarzschild objective[J]. High Power Laser and Particle Beams, 2013, 25: 2599-2603. doi: 10.3788/HPLPB20132510.2599

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Zhang Yulong, Li Liang, Chen Huaibi. Basis material selection principle for high energy X-ray basis material decomposition method[J]. High Power Laser and Particle Beams, 2014, 26: 025101. doi: 10.3788/HPLPB201426.025101

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Basis material selection principle for high energy X-ray basis material decomposition method

doi: 10.3788/HPLPB201426.025101

Zhang Yulong^{1,2
,
,},
Li Liang^1,2,
Chen Huaibi^1,2

1.
Department of Engineering Physics,Tsinghua University,Beijing 100084,China;
2.
Key Laboratory of Particle &Radiation Imaging Tsinghua University,Ministry of Education,Beijing 100084,China

Received Date: 2013-05-21
Rev Recd Date: 2013-10-30
Publish Date: 2014-02-15

Abstract

Abstract

Selection of basis material is a key process for dual high energy X-ray computer tomography basis material decomposition method (BMDM). In order to make clear the influence of different basis materials on material discrimination accuracy and put forward a reasonable principle for the selection of basis material, this article compared the atomic number and electron density of materials being discriminated which were calculated with BMDM based on different basis materials. It further summed up a basis material selection principle named neighboring principle, i.e., choosing a basis material with the atomic number close to that of the material under discrimination could improve the discrimination accuracy, and four energy basis material decomposition methods are put forward based on the principle. Finally, with the Monte-Carlo technique, the validity of the four energy basis material decomposition methods was verified.
- high energy X-ray,
- basis material,
- basis material decomposition method,
- material discrimination,
- nondestructive testing

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