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Cites:

1

Information Journal Paper

Title

Investigation of the effects of a carbon-fiber tabletop on the surface dose and attenuation dose for megavoltage photon beams

Pages

  235-241

Abstract

 Background: Mul ple beams are generally used with an increased possibility that the beam axis intersects the treatment table. Treatment tabletops are commonly made of carbon fiber due to its high mechanical strength and rigidity, low specific density, extremely light and low radia on beam a enua on proper es. Purpose of this paper is inves gated the dose changes in the buildup region and beam a enua on by a carbon fiber tabletop for high energy 6-and 18-MV photon beams. Materials and Methods: Measurements were performed for 10 cm × 10 cm and 20 cm × 20 cm field sizes. The surface dose and percentage depth doses (%DD) were measured by a Markus parallel plate chamber at a source-surface distance (SSD) of 100 cm for 6 MV and 18 MV photon beams. A enua on measurements were made at the solid-water phantom for gantry angles of 0o and 180o rota on of the beam. Results: A carbon fiber tabletop increases the surface dose from 12. 87% to 86. 65% for 10 cm x 10 cm and from 8. 72% to 71. 16% for 20 cm × 20 cm field at 6 and 18 MV, respec vely. The surface dose with the carbon fiber tabletop in an open field (0o) increases with field size. Conclusion: The carbon fiber tabletop causes a substan ally increased surface dose, and also significantly decreases the skin-sparing effect, which is clinically important. The dosimetric effect of the tabletop may be higher, especially for the intensitymodulated radia on therapy depending on the beam orienta on.

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    • Cite

    APA: Copy

    GURSOY, G., Eser, e., Yigitoglu, i., KOC, H., Kahraman, f.c., & Yamc?cier, s.. (2018). Investigation of the effects of a carbon-fiber tabletop on the surface dose and attenuation dose for megavoltage photon beams. INTERNATIONAL JOURNAL OF RADIATION RESEARCH, 16(2), 235-241. SID. https://sid.ir/paper/286732/en

    Vancouver: Copy

    GURSOY G., Eser e., Yigitoglu i., KOC H., Kahraman f.c., Yamc?cier s.. Investigation of the effects of a carbon-fiber tabletop on the surface dose and attenuation dose for megavoltage photon beams. INTERNATIONAL JOURNAL OF RADIATION RESEARCH[Internet]. 2018;16(2):235-241. Available from: https://sid.ir/paper/286732/en

    IEEE: Copy

    G. GURSOY, e. Eser, i. Yigitoglu, H. KOC, f.c. Kahraman, and s. Yamc?cier, “Investigation of the effects of a carbon-fiber tabletop on the surface dose and attenuation dose for megavoltage photon beams,” INTERNATIONAL JOURNAL OF RADIATION RESEARCH, vol. 16, no. 2, pp. 235–241, 2018, [Online]. Available: https://sid.ir/paper/286732/en

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