OPTIMUM FIELD SEPARATION IN ADJACENT FIELDS OF ELECTRON BEAM THERAPY

Authors

  • TUNTIPUMIAMORN L. Department of Radiology, Faculty of Medicine, Siriraj Hospital, Mahidol University
  • POLWATSATIEN V. Department of Radiology, Faculty of Medicine, Siriraj Hospital, Mahidol University
  • SUTUD NA AYUTHAYA Department of Radiological Technology, Faculty of Medical Technology, Mahidol University
  • SAINET S. Department of Radiological Technology, Faculty of Medical Technology, Mahidol University

Abstract

Due to the scattering properties of electrons, the problem of positioning of multiple electron fields is more complicated than in the case of photon beam. In this study we investigated the dose uniformity at the junction region of adjacent electron fields in different field separations for several cone sizes and beam energies with a particular closed-sided applicator by using film dosimetry. Optimum field separation found in this study depends on applicator cone size and beam energy combination.

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References

Khan FM. Electron beam therapy. In: The physics of radiotherapy. 2" ed. Williams & Wilkins: Baltimore, USA, 1994:361- 365

Bagne F. Adjacent field of high energy xrays and electrons :Flat surface. Phys. Med. Biol, 1978;23(6):1186-1191

Able CM. Mills MD, McNeese MD, Hongstrom KR. Evaluation of a total scalp electron irradiation. Int J Radiat Oncol Biol Phys, 1991;21;1063-1072

Kalend AM, Zwicker RD, Wu A, Sternick ES. A beam - edge modifier for abutting electron fields. Med Phys. , 1985;12:793- 798

Kurup RG, Wang S, Glasglow GP. Field matching of electron beams using plastic wedge penumbra generators. Phys. Med. Biol, 1992;37:145-153

Zavgorodni SF, Beckham WA, Roos DE. A method for producing uniform dose distribution in the junction regions of large hinge angle electron fields. Int J Rad Oncol Biol Phys, 1996;35(4):765-770

Harms WB, Purdy JA. Abutment of high energy electron field. Int J Rad Oncol Biol Phys, 1991;20(4):853-858

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Published

2023-04-10

How to Cite

1.
L. T, V. P, NA AYUTHAYA S, S. S. OPTIMUM FIELD SEPARATION IN ADJACENT FIELDS OF ELECTRON BEAM THERAPY. ASEAN J Radiol [Internet]. 2023 Apr. 10 [cited 2024 Nov. 21];5(2):205-12. Available from: https://asean-journal-radiology.org/index.php/ajr/article/view/489

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