Physica Medica: European Journal of Medical Physics
Volume 28, Issue 1 , Pages 13-18, January 2012

Dosimetric parameters of the new design 103Pd brachytherapy source based on Monte Carlo study

  • Pooneh Saidi

      Affiliations

    • Department of Nuclear Engineering, Science and Research Branch, Islamic Azad University, 1477893855, Tehran, Iran
    • ,
  • Mahdi Sadeghi

      Affiliations

    • Agricultural, Medical and Industrial Research School, Nuclear Science and Technology Research Institute, P.O. Box 31485-498, Gohardasht, 1439951113 Kkaraj, Iran
    • Corresponding Author InformationCorresponding author. Tel.: +98 261 4436395; fax: +98 261 4464055.
    • ,
  • Alireza Shirazi

      Affiliations

    • Department of Biophysics, Faculty of Medicine, Tehran University of Medical Sciences, 1417863181 Tehran, Iran
    • ,
  • Claudio Tenreiro

      Affiliations

    • Department of Energy Science, SungKyunKwan University, 300 Cheoncheon-dong, 440–746 Suwon, Republic of Korea

Received 23 September 2010; received in revised form 18 December 2010; accepted 21 December 2010. published online 20 January 2011.

Abstract 

In this study version 5 of the MCNP photon transport simulation was used to calculate the dosimetric parameters for new palladium brachytherapy source design following AAPM Task Group No. 43U1 report. The internal source components include four resin beads of 0.6 mm diameters with 103Pd uniformly absorbed inside and one cylindrical copper marker with 1.5 mm length. The resin beads and marker are then encapsulated within 0.8 mm in diameter and 4.5 mm long cylindrical capsule of titanium. The dose rate constant, Λ, line and point-source radial dose function, gL(r) and gP(r), and the anisotropy function, F(r,θ) of the IR01-103Pd seed have been calculated at distances from 0.25 to 5 cm. All the results are in good agreement with previously published thermoluminescence-dosimeter measured values [3] for the source. The dosimetric parameters calculated in this work showed that in dosimetry point of view, the IR01-103Pd seed is suitable for use in brachytherapy of prostate cancer.

Keywords: Monte Carlo calculation, Brachytherapy, TG-43U1, MCNP5, 103Pd

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PII: S1120-1797(10)00081-5

doi:10.1016/j.ejmp.2010.12.005

Physica Medica: European Journal of Medical Physics
Volume 28, Issue 1 , Pages 13-18, January 2012

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