Monte Carlo Simulation for Polychromatic X-Ray Fluorescence Computed Tomography with Sheet-Beam Geometry

Joint Authors

He, Peng
Jiang, Shanghai
Wei, Biao
Chen, Mianyi
Deng, Lu-zhen

Source

International Journal of Biomedical Imaging

Issue

Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-10, 10 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2017-05-08

Country of Publication

Egypt

No. of Pages

10

Main Subjects

Medicine

Abstract EN

X-ray fluorescence computed tomography (XFCT) based on sheet beam can save a huge amount of time to obtain a whole set of projections using synchrotron.

However, it is clearly unpractical for most biomedical research laboratories.

In this paper, polychromatic X-ray fluorescence computed tomography with sheet-beam geometry is tested by Monte Carlo simulation.

First, two phantoms (A and B) filled with PMMA are used to simulate imaging process through GEANT 4.

Phantom A contains several GNP-loaded regions with the same size (10 mm) in height and diameter but different Au weight concentration ranging from 0.3% to 1.8%.

Phantom B contains twelve GNP-loaded regions with the same Au weight concentration (1.6%) but different diameter ranging from 1 mm to 9 mm.

Second, discretized presentation of imaging model is established to reconstruct more accurate XFCT images.

Third, XFCT images of phantoms A and B are reconstructed by filter back-projection (FBP) and maximum likelihood expectation maximization (MLEM) with and without correction, respectively.

Contrast-to-noise ratio (CNR) is calculated to evaluate all the reconstructed images.

Our results show that it is feasible for sheet-beam XFCT system based on polychromatic X-ray source and the discretized imaging model can be used to reconstruct more accurate images.

American Psychological Association (APA)

Jiang, Shanghai& He, Peng& Deng, Lu-zhen& Chen, Mianyi& Wei, Biao. 2017. Monte Carlo Simulation for Polychromatic X-Ray Fluorescence Computed Tomography with Sheet-Beam Geometry. International Journal of Biomedical Imaging،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1159694

Modern Language Association (MLA)

Jiang, Shanghai…[et al.]. Monte Carlo Simulation for Polychromatic X-Ray Fluorescence Computed Tomography with Sheet-Beam Geometry. International Journal of Biomedical Imaging No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1159694

American Medical Association (AMA)

Jiang, Shanghai& He, Peng& Deng, Lu-zhen& Chen, Mianyi& Wei, Biao. Monte Carlo Simulation for Polychromatic X-Ray Fluorescence Computed Tomography with Sheet-Beam Geometry. International Journal of Biomedical Imaging. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1159694

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1159694