Characteristics Analysis of High Energy External Radiotherapy Beams in Water

Authors

  • M. A. Rahman BAUST
  • M. Jahangir Alam Ahsania Mission Cancer & General Hospital
  • M. Akhtaruzzaman Ahsania Mission Cancer & General Hospital

DOI:

https://doi.org/10.18034/mjmbr.v5i1.450

Keywords:

Radiation, Photon Beam, Electron Beam, Absorbed dose, Percentage Depth Dose, Treatment Planning

Abstract

High energy external radiotherapy beam is being used widely for cancer treatment. Biological effect of radiation is concerned with the evaluation of energy absorbed in the tissue. The study of photon and electron beam characteristics is necessary before calibration machine. The aim of this study was to analysis characteristics of depth dose of different energy beams in water to enhance the quality of the radiotherapy treatment planning. Beam is attenuated by the medium and the transmitted beam with less intensity causes lesser absorbed dose as the depth increases. Relative attenuation on certain points on the beam axis and certain percentage of doses on different depths for 4-15 MV photon beams and 4-18 MeV electron beams have been investigated. Depth dose characteristics of the beams do not show identical attributes as interaction of the beams with matters is mainly governed by beam quality. Attenuation and penetration parameters show variation with dosimetric parameters like field size due to scattering and source to surface distance due to inverse square law but the major parameter in interaction is energy. Detailed analysis of the beam characteristics helps to select appropriate beam for radiotherapy treatment when variety of beam energies available and hence to increase accuracy in radiotherapy treatment.

 

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Author Biographies

  • M. A. Rahman, BAUST

    Department of Arts & Sciences, BAUST, Saidpur, Nilphamari, BANGLADESH

  • M. Jahangir Alam, Ahsania Mission Cancer & General Hospital

    Ahsania Mission Cancer & General Hospital, Uttara, Dhaka, BANGLADESH

  • M. Akhtaruzzaman, Ahsania Mission Cancer & General Hospital

    Ahsania Mission Cancer & General Hospital, Uttara, Dhaka, BANGLADESH

References

Besim Xhafa, Tatjana Mulaj, Gezim Hodolli and Gazmend Nafezi; Dose distribution of photon beam by Siemens linear accelerator, International Journal of Medical Physics, Clinical Engineering and Radiation Oncology, 2014; 3, 67-70. DOI: https://doi.org/10.4236/ijmpcero.2014.31011

British Institute of Radiology, Central axis depth dose data for use in radiotherapy, Brit. J Radiol.1996; Suppl. 25.

E. B. Podrosak, Radiation Oncology Physics, A Hand book for Teachers and Students, p-194.

G.Narayanasamy,W Cruz, N Papanikolaou and S Stathakis. Comparison between measured tissue phantom ratio values and calculated from PDD with and without peak scatter correction factor in a 6 MV beam. Int J Cancer Ther Oncol, 2015; 3(2):03024 DOI: https://doi.org/10.14319/ijcto.0302.4

Kato H, Fujii S, Suzuki S. Method of calculating percentage depth dose for diagnostic X-rays. Nippon Hoshasen Gijutsu Gakkai Zasshi 2004;60:1107–15. DOI: https://doi.org/10.6009/jjrt.KJ00000922571

Khan FM. Physics of Radiation Therapy. 3rd Edition, USA: Lippincott Williams & Wilkins; 2003.

M Saiful Huq, Pedro Andreo and Haijun Song, Comparison of the IAEA TRS-398 and AAPM TG-51 absorbed dose to water protocols in the dosimetry of high-energy photon and electron beams; Phys. Med. Biol. 2001, 46, 2985-3006.

M. Jahangir Alam, K. S. Rabbani, G. A. Zakaria, S. M. Akram Hossain, Adnan Kimber and Tanvir Baig; A modified formula for defining tissue phantom ratio of Photon beams, Bangladesh Med Res Counc Bull 2007; 33, 92-97. DOI: https://doi.org/10.3329/bmrcb.v33i3.1140

P. Metcalf, T. Kron and P. Hoban, The physics of Radiotherapy X-rays from Linear Accelerator. Medical Physics publishing, 2004.

Ravikumar M, Ravichandran R. Dose measurements in the build-up region for the photon beams from Clinac-1800 dual energy medical linear accelerator. Strahlenther Onkol 2002; 176:223–8. DOI: https://doi.org/10.1007/s000660050004

Sama Saed Al-Ahbabi et,al, A comparison of protocols for external beam radiotherapy beam calibrations, Applied Radiation and Isotopes; 2012, 70, 1331-1336. DOI: https://doi.org/10.1016/j.apradiso.2011.11.065

T. Arunkumar, Sanjay S. Shupe, M. Ravikumar, S. Sathiyan, and M. Ganesh J Med Phys. 2010 Oct-Dec; 35(4): 207–214. DOI: https://doi.org/10.4103/0971-6203.71763

Wambersie A, Menzel HG, Gahbauer RA, Jones DT, Michael BD, Paretzke H. Biological weighting of absorbed dose in radiation therapy. Radiat Prot Dosimetry 2002; 99:445–52. DOI: https://doi.org/10.1093/oxfordjournals.rpd.a006829

White DR, Martin RJ, Darlison R. Epoxy resin based tissue substitutes. Br J Radiol 1977; 50:814–21. DOI: https://doi.org/10.1259/0007-1285-50-599-814

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Published

2018-06-30

Issue

Vol. 5 No. 1 (2018): January - June Issue

Section

Peer-reviewed Article

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How to Cite

Rahman, M. A. ., Alam, M. J. ., & Akhtaruzzaman, M. . (2018). Characteristics Analysis of High Energy External Radiotherapy Beams in Water. Malaysian Journal of Medical and Biological Research, 5(1), 51-60. https://doi.org/10.18034/mjmbr.v5i1.450