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Determination of task group 43 dosimetric parameters for CSM40 137Cs source for use in brachytherapy

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Abstract

The CSM40 137Cs source model is currently being used in clinical brachytherapy. According to the recommendations of task group No. 43 (TG-43) of the American Association of Physicists in Medicine, dosimetry parameters of brachytherapy sources should be determined by two independent investigators before their clinical use. The aim of this study was to determine the TG-43 dosimetry parameters for a medium-dose-rate CSM40 137Cs source. The determined dosimetric parameters included the air kerma strength, dose rate constant, radial dose function, and anisotropy function. To determine the source’s dosimetric parameters, the CSM40 source was stimulated by the Monte Carlo N-Particle MCNP code. The TG-43 parameters were compared with the data of Vijande et al. on this source. The results showed that the dosimetry parameters for this source had good agreement with the results of Vijande et al. The dosimetric parameters of the CSM40 source can be used in treatment-planning systems incorporating this source model. The data can also be used for the quality assurance of treatment-planning systems.

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Acknowledgements

The results of this article were extracted from the M.Sc. thesis of Elaheh Jimabadi of the Birjjand University. The author would like to thank Birjand University for the financial support of this work.

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Authors and Affiliations

  1. Department of Physics, Faculty of Sciences, University of Birjand, Birjand, Iran

    Mohammad Mehdi Firoozabadi & Elaheh Jimabadi

  2. Biomedical Engineering and Medical Physics Department, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Velenjak, Tehran, 198 5717443, Iran

    Mahdi Ghorbani

  3. Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran

    Marziyeh Behmadi

Authors
  1. Mohammad Mehdi Firoozabadi
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  2. Elaheh Jimabadi
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  3. Mahdi Ghorbani
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  4. Marziyeh Behmadi
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Corresponding author

Correspondence to Mahdi Ghorbani.

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There is no relationship that may lead to conflict of interest.

Ethical statement

This research was not performed on animal or human samples; therefore, it does not deal with animal and human ethical issues and informed consent.

Additional information

This study was performed at the “Physics Department, Faculty of Sciences, Birjand University, Birjand, Iran”.

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Firoozabadi, M.M., Jimabadi, E., Ghorbani, M. et al. Determination of task group 43 dosimetric parameters for CSM40 137Cs source for use in brachytherapy. Radiol Phys Technol 11, 82–90 (2018). https://doi.org/10.1007/s12194-017-0440-3

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  • DOI: https://doi.org/10.1007/s12194-017-0440-3

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