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Analysis of Secondary Photons Emergent from Combined Material Slab as a Function of Slab Thickness

  • BIOPHYSICS AND MEDICAL PHYSICS
  • Published:
Moscow University Physics Bulletin Aims and scope

Abstract

Material science is very important for developing the linear accelerator. Determination and understanding of material behavior face to X-rays is a basic study for photon beam modifiers improvements. In this study, the 6 MV photon beams produced by Varian Clinac 2100 was modelled by Monte Carlo simulation using BEAMnrc code and thereafter the flattening filter was replaced by a slab of aluminum and copper separately and by slab of both materials combined together with different thickness of 2.5, 5, 7.5, and 10 mm.

The purpose of this study is to investigate the scattered photons with thickness of combined material slab as a function of off-axis distance. The scattered photons increased with thickness of copper alone slab, combined aluminum-copper slab and copper-aluminum slab, but for aluminum alone slab they decreased with slab thickness. The stacking order of these two materials affects the characterization of scattered photons emergent from material slab with thickness. The combination of materials and the manner that the stacking was done affects the scattered photons production. The material combination could improve the radiotherapy efficiency in beam modifier development using more than two materials.

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REFERENCES

  1. M. Bencheikh, A. Maghnouj, and J. Tajmouati, Phys. Part. Nucl. Lett. 14, 953 (2017).

    Article  Google Scholar 

  2. A. O. Ezzati, Y. Xiao, M. Sohrabpour, and M. T. Studenski, Med. Biol. Eng. Comput. 53, 67 (2015).

    Article  Google Scholar 

  3. M. Bencheikh, A. Maghnouj, and J. Tajmouati, Moscow Univ. Phys. Bull. 72, 263 (2017).

    Article  ADS  Google Scholar 

  4. A. Didi, A. Dadouch, M. Bencheikh, and O. Jai, Moscow Univ. Phys. Bull. 72, 460 (2017).

    Article  ADS  Google Scholar 

  5. M. Bencheikh, A. Maghnouj, J. Tajmouati, and A. Didi, Moscow Univ. Phys. Bull. 72, 640 (2017).

    Article  ADS  Google Scholar 

  6. D. W. O. Rogers, B. Walters, and I. Kawrakow, BEAMnrc Users Manual (Ottawa, 2013), pp. 12–254.

    Google Scholar 

  7. D. W. O. Rogers, I. Kawrakow, J. P. Seuntjens, B. Walters, and H. E. Mainegra, NRC User Codes for EGSnrc (Ottawa, 2013), pp. 6–83.

    Google Scholar 

  8. M. Bencheikh, A. Maghnouj, J. Tajmouati, A. Didi, and A. O. Ezzati, Phys. Part. Nucl. Lett. 14, 780 (2017).

    Article  Google Scholar 

  9. Commissioning and Quality Assurance of Computerized Planning Systems for Radiation Treatment of Cancer (International Atomic Energy Agency, Vienna, 2004).

  10. Specification and Acceptance Testing of Radiotherapy Treatment Planning Systems (International Atomic Energy Agency, Vienna, 2007).

  11. C. M. Ma and D. W. O. Rogers, BEAMDP Users Manual (National Research Council of Canada, Ottawa, 2013), pp. 3–24.

    Google Scholar 

  12. M. Aljamal and A. Zakaria, Aust. J. Basic Appl. Sci. 7, 340 (2013).

    Google Scholar 

  13. Absorbed Dose Determination in External Beam Radiotherapy (International Atomic Energy Agency, Vienna, 2000), pp. 110–133.

  14. P. Lonski, M. L. Taylor, R. D. Franich, P. Harty, and T. Kron, Radiat. Prot. Dosim. 152, 304 (2012).

    Article  Google Scholar 

  15. Contrôles de qualité en radiothérapie conformationnelle avec modulation d’intensité (Société Française de Physique Médicale, 2010), pp. 42–44.

  16. A. Brahme and P. Andreo, Acta Radiol.: Oncol. 25, 213 (1986).

    Google Scholar 

  17. J. Ojala, PhD Thesis (Tampere University of Technology, Tampere, 2014).

  18. M. Bencheikh, A. Maghnouj, J. Tajmouati, A. Lamrabet, and Y. Benkhouy, Moscow Univ. Phys. Bull. 72, 653 (2017).

    Article  ADS  Google Scholar 

  19. M. Bencheikh, A. Maghnouj, and J. Tajmouati, Phys. Part. Nucl. Lett. 14, 963 (2017).

    Article  Google Scholar 

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ACKNOWLEDGMENTS

The authors would like to thank Varian Medical Systems for providing us with the Varian Clinac 2100 geometry data and giving us this opportunity to study the Varian linear accelerator technology and to participate in its future development.

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Authors and Affiliations

  1. LISTA Laboratory, Department of Physics, Faculty of Sciences Dhar El-Mahraz, University of Sidi Mohamed Ben Abdellah, 30050, Fez, Morocco

    Mohamed Bencheikh, Abdelmajid Maghnouj, Jaouad Tajmouati & Abdessamad Didi

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  1. Mohamed Bencheikh
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  2. Abdelmajid Maghnouj
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  3. Jaouad Tajmouati
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  4. Abdessamad Didi
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Correspondence to Mohamed Bencheikh.

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Bencheikh, M., Maghnouj, A., Tajmouati, J. et al. Analysis of Secondary Photons Emergent from Combined Material Slab as a Function of Slab Thickness. Moscow Univ. Phys. 73, 520–525 (2018). https://doi.org/10.3103/S0027134918050065

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  • DOI: https://doi.org/10.3103/S0027134918050065

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