Application of Electron Dose Kernels to account for heterogeneities in voxelized phantoms

Ahmad Khaled Al-Basheer, Glenn E. Sjoden, Monica Ghita, Wesley Bolch

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper, we present work on the application of the Electron Dose Kernel discrete ordinates method (EDK-SN) to compute doses and account for material heterogeneities using high energy external photon beam irradiations in voxelized human phantoms. EDKs are pre-computed using photon pencil "beamlets" that lead to dose delivery in tissue using highly converged Monte Carlo. Coupling the EDKs to accumulate dose scaled by integral photon fluences computed using SN methods in dose driving voxels (DDVs) allows for the full charged particle physics computed dose to be accumulated throughout the voxelized phantom, and is the basis of the EDK-SN method, which is fully parallelized. For material heterogeneities, a density scaling correction factor is required to yield good agreement. In a fully voxelized phantom, all doses were in agreement with those determined by independent Monte Carlo computations. We are continuing to expand upon the development of this robust approach for rapid and accurate determination of whole body and out of field organ doses due to high energy x-ray beams.

Original languageEnglish (US)
Title of host publicationAmerican Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009
Pages1412-1423
Number of pages12
StatePublished - Dec 1 2009
EventInternational Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009 - Saratoga Springs, NY, United States
Duration: May 3 2009May 7 2009

Publication series

NameAmerican Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009
Volume3

Other

OtherInternational Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009
CountryUnited States
CitySaratoga Springs, NY
Period5/3/095/7/09

Fingerprint

Phantom
Dose
Photons
Electron
kernel
dosage
Electrons
electrons
High energy physics
Charged particles
Photon
Dosimetry
Irradiation
Tissue
High Energy
X rays
Discrete Ordinates Method
Particle Physics
Kernel Methods
photon beams

Keywords

  • 3-D
  • Deterministic S
  • EDK-S
  • Heterogeneities
  • Whole body dose

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Computational Mathematics
  • Nuclear and High Energy Physics

Cite this

Al-Basheer, A. K., Sjoden, G. E., Ghita, M., & Bolch, W. (2009). Application of Electron Dose Kernels to account for heterogeneities in voxelized phantoms. In American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009 (pp. 1412-1423). (American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009; Vol. 3).

Application of Electron Dose Kernels to account for heterogeneities in voxelized phantoms. / Al-Basheer, Ahmad Khaled; Sjoden, Glenn E.; Ghita, Monica; Bolch, Wesley.

American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009. 2009. p. 1412-1423 (American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009; Vol. 3).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Al-Basheer, AK, Sjoden, GE, Ghita, M & Bolch, W 2009, Application of Electron Dose Kernels to account for heterogeneities in voxelized phantoms. in American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009. American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009, vol. 3, pp. 1412-1423, International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009, Saratoga Springs, NY, United States, 5/3/09.
Al-Basheer AK, Sjoden GE, Ghita M, Bolch W. Application of Electron Dose Kernels to account for heterogeneities in voxelized phantoms. In American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009. 2009. p. 1412-1423. (American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009).
Al-Basheer, Ahmad Khaled ; Sjoden, Glenn E. ; Ghita, Monica ; Bolch, Wesley. / Application of Electron Dose Kernels to account for heterogeneities in voxelized phantoms. American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009. 2009. pp. 1412-1423 (American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009).
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