• Corpus ID: 119016609

Monte Carlo simulation of 192Ir radioactive source in a phantom designed for brachytherapy dosimetry and source position evaluation.

@article{Chiquita2018MonteCS,
  title={Monte Carlo simulation of 192Ir radioactive source in a phantom designed for brachytherapy dosimetry and source position evaluation.},
  author={Samuel Chiquita},
  journal={arXiv: Medical Physics},
  year={2018}
}
  • S. Chiquita
  • Published 25 November 2018
  • Physics, Medicine
  • arXiv: Medical Physics
In this report simulations of 192Ir source located inside a phantom designed for measuring the absorbed dose and radioactive source position are presented. Monte Carlo simulations were performed and results were compared with a theoretical model that enables to determine radioactive source position. A good fit from the simulated data to the theoretical model was obtained. Results show that Monte Carlo simulations allow to evaluate source position and absorbed dose with implications in treatment… 

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References

SHOWING 1-10 OF 10 REFERENCES

High dose-rate brachytherapy source localization: positional resolution using a diamond detector.

A potential real-time source position verification process for high dose-rate (HDR) brachytherapy treatment is described and it is shown that three dosimeters are in principle sufficient and the feasibility of the process using a diamond detector and an Ir-192 source is demonstrated.

EGSnrc Monte Carlo calculated dosimetry parameters for Ir192 and Yb169 brachytherapy sources.

The calculation methods are described and the dose rate constants calculated for each source are presented with the full set of dosimetry data being available online at the Carleton Laboratory for Radiotherapy Physics brachytherapy database.

Determination of the tissue attenuation factor along two major axes of a high dose rate (HDR) 192Ir source.

The calculated tissue attenuation factor along the longitudinal source axis generally reproduced the TLD and Monte Carlo results within +/- 5% at most radial distances, and was found to be remarkably different between the two axes.

Monte Carlo-aided dosimetry of a new high dose-rate brachytherapy source.

A new high-intensity 192Ir source design for use in a recently reengineered microSelectron-HDR remote afterloading device for high dose-rate (HDR) brachytherapy is introduced and linear extrapolation from the anisotropy functions defined by TG-43 accurately estimates dose rate at short and long distances lying outside the radial distance range of the original measured data.

Real-time verification of HDR brachytherapy source location: implementation of detector redundancy

It is shown that an array of dosimeters placed on the patient's skin can independently verify the position in three dimensions of the source position during the treatment, so that the treatment can be aborted and modified if necessary.

The physics of modern brachytherapy for onocology

This chapter discusses Brachytherapy Dosimetry Systems, Ionization and X-Rays, and Enrichment Methods ss-ray Emitting Microparticles and Nanoparticles.

Review of Radiation Oncology Physics: A Handbook for Teachers and Students

Most of the external beam radiotherapy is carried out with photon beams, some with electron beams, and a very small fraction with more exotic particles, such as protons, heavier ions or neutrons.

The Physics of Radiation Therapy

This article reviews The Physics of Radiation Therapy by Faiz M. Khan, John P. Gibbons , Fifth Edition. and , , Baltimore and Philadelphia, 2014. 624 pp. Price: $190.39. ISBN: 9781451182453…

High dose-rate brachytherapy source position quality assurance using radiochromic film.