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Fast method for the estimation of the absorbed dose in X-ray microtomography

Amélie De Muynck (UGent) , Stijn Bonte (UGent) , Jelle Dhaene (UGent) , Manuel Dierick (UGent) , Klaus Bacher (UGent) , Luc Van Hoorebeke (UGent) and Matthieu Boone (UGent)
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Abstract
Micro-CT imaging is an increasingly popular tool in the internal investigation of objects and materials. However, as an X-ray based technique, a potentially harmful radiation dose is deposited in the sample during the measurement. In (non small-animal) micro-CT imaging one is dealing with a strong variation in measurement systems and settings, resulting in many different acquisition circumstances and the absence of standard imaging protocols. Therefore, the deposited dose is rarely studied for micro-CT applications. This research aimed at developing a fast simulation technique to predict the dose associated with micro-CT scanning. Its performance is compared with that of two different Monte Carlo simulation tools and with a straight forward approach to estimate an upper limit for the dose. The fast simulation method, obtaining a dose estimation based on the energy absorption coefficient, is much faster than the Monte Carlo simulations, and the results are accurate within 30%. This enables us to predict the dose for a known sample and a known scanner setup, without complex Monte Carlo simulations and will allow researchers to avoid radiation damage or unwanted radiation induced effects, an increasingly important concern in 3D and 4D micro-CT scanning.
Keywords
Computed tomography, Absorbed dose, Micro-CT, MICRO-CT, GEANT4, EGSNRC, SIMULATION, PENELOPE, RADIOGRAPHY, TOMOGRAPHY, ACCURACY, PHOTON, BEAM

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Citation

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MLA
De Muynck, Amélie, et al. “Fast Method for the Estimation of the Absorbed Dose in X-Ray Microtomography.” NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, vol. 452, 2019, pp. 40–47.
APA
De Muynck, A., Bonte, S., Dhaene, J., Dierick, M., Bacher, K., Van Hoorebeke, L., & Boone, M. (2019). Fast method for the estimation of the absorbed dose in X-ray microtomography. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 452, 40–47.
Chicago author-date
De Muynck, Amélie, Stijn Bonte, Jelle Dhaene, Manuel Dierick, Klaus Bacher, Luc Van Hoorebeke, and Matthieu Boone. 2019. “Fast Method for the Estimation of the Absorbed Dose in X-Ray Microtomography.” NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 452: 40–47.
Chicago author-date (all authors)
De Muynck, Amélie, Stijn Bonte, Jelle Dhaene, Manuel Dierick, Klaus Bacher, Luc Van Hoorebeke, and Matthieu Boone. 2019. “Fast Method for the Estimation of the Absorbed Dose in X-Ray Microtomography.” NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 452: 40–47.
Vancouver
1.
De Muynck A, Bonte S, Dhaene J, Dierick M, Bacher K, Van Hoorebeke L, et al. Fast method for the estimation of the absorbed dose in X-ray microtomography. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS. 2019;452:40–7.
IEEE
[1]
A. De Muynck et al., “Fast method for the estimation of the absorbed dose in X-ray microtomography,” NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, vol. 452, pp. 40–47, 2019.
@article{8618148,
  abstract     = {Micro-CT imaging is an increasingly popular tool in the internal investigation of objects and materials. However, as an X-ray based technique, a potentially harmful radiation dose is deposited in the sample during the measurement. In (non small-animal) micro-CT imaging one is dealing with a strong variation in measurement systems and settings, resulting in many different acquisition circumstances and the absence of standard imaging protocols. Therefore, the deposited dose is rarely studied for micro-CT applications. This research aimed at developing a fast simulation technique to predict the dose associated with micro-CT scanning. Its performance is compared with that of two different Monte Carlo simulation tools and with a straight forward approach to estimate an upper limit for the dose. The fast simulation method, obtaining a dose estimation based on the energy absorption coefficient, is much faster than the Monte Carlo simulations, and the results are accurate within 30%. This enables us to predict the dose for a known sample and a known scanner setup, without complex Monte Carlo simulations and will allow researchers to avoid radiation damage or unwanted radiation induced effects, an increasingly important concern in 3D and 4D micro-CT scanning.},
  author       = {De Muynck, Amélie and Bonte, Stijn and Dhaene, Jelle and Dierick, Manuel and Bacher, Klaus and Van Hoorebeke, Luc and Boone, Matthieu},
  issn         = {0168-583X},
  journal      = {NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS},
  keywords     = {Computed tomography,Absorbed dose,Micro-CT,MICRO-CT,GEANT4,EGSNRC,SIMULATION,PENELOPE,RADIOGRAPHY,TOMOGRAPHY,ACCURACY,PHOTON,BEAM},
  language     = {eng},
  pages        = {40--47},
  title        = {Fast method for the estimation of the absorbed dose in X-ray microtomography},
  url          = {http://dx.doi.org/10.1016/j.nimb.2019.05.055},
  volume       = {452},
  year         = {2019},
}

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