Comparative Study of Absorbed Doses in Different Phantom Materials and Fabrication of a Suitable Phantom

Authors

  • M. A. Rahman BCSIR
  • Md. Tofajjol Hoseen Bhuiyan Pabna University of Science and Technology
  • M. M. Rahman Khwaja Yunus Ali Medical College & Hospital
  • M.N. Chowdhury University of Asia Pacific

DOI:

https://doi.org/10.18034/mjmbr.v5i1.444

Keywords:

Phantom, Dosimetry, Absorbed dose, Paraffin-wax, Scaling factor

Abstract

In Cancer treatment (radiotherapy) centers, Phantom is important in Quality Assurance routine check and absolute dosimetry conformation. Water is IAEA standard phantom material. But it has some technical difficulty in practical uses and other solid phantoms such as Polystyrene, PMMA is very expensive and locally not available. Hence, the purpose of this paper is to find out a phantom that will be technically very sound, cost effective and locally available. This study reveals that paraffin wax, which has some approximately similar properties (i.e. chemical composition, mass density and number of electrons/gram) to water, can be used as alternative of solid water phantom because of their proximity to the dose absorption property of water which is even better than some of the conventional solid phantoms used in radiation dosimetry. It is also found that paraffin wax phantom with air-bubble inside behaves differently to the radiation absorbing dose and therefore in dose absorption and dose conversion (scaling) factor.

 

Metrics

Metrics Loading ...

Downloads

Download data is not yet available.

Author Biographies

  • M. A. Rahman, BCSIR

    Scientific Officer, Designated Reference Institute for Chemical Measurement (DRiCM), BCSIR, Dhaka-1205, BANGLADESH

  • Md. Tofajjol Hoseen Bhuiyan, Pabna University of Science and Technology

    Lecturer, Department of Physics, Pabna University of Science and Technology, Rajapur, Pabna-6600, BANGLADESH

  • M. M. Rahman, Khwaja Yunus Ali Medical College & Hospital

    Research Officer, Khwaja Yunus Ali Medical College & Hospital, Cancer Centre, Enayetpur, Sirajganj, BANGLADESH

  • M.N. Chowdhury, University of Asia Pacific

    Lecturer, Department of Basic Sciences and Humanities, University of Asia Pacific, Dhanmondhi, Dhaka, BANGLADESH

References

Almond PR, Biggs PJ, Coursey BM, et al. (1999) AAPM’s TG-51 protocol for clinical reference dosimetry of high energy photon and electron beams. Med Phys 26(9):1847–1870 DOI: https://doi.org/10.1118/1.598691

America Association of Physicists in Medicine (1983) Task Group 21: A protocol for the determination of absorbed dose from high energy photon and electron beams. Med Phys 10,741 DOI: https://doi.org/10.1118/1.595446

American Institute of Physics (1994) Physical Aspects of Quality Assurance in Radiation Therapy AAPM Report No. 13 New York

D. Mihailescu, C. Borcia (2006) Water Equivalency of Some Plastic Materials Used in Electron Dosimetry:A Monte Carlo Investigation. Romanian Reports in Physics, Vol. 58, No. 4, P. 415–425

Elekta Synergy® S (2014) Image-guided stereotactic radiation therapy system http://www.elekta.com/healthcare-professionals/products/elekta-oncology/oncology-treatment-solutions/elekta-synergy/synergy-s.html

F. M. Khan (1994) The physics of radiation therapy. Second Edition. Williams &Wilins, USA

IAEA, Technical Reports Series No. 277 (2nd edn in 1997) (1987). IAEA, Vienna

ICRU (1976) Determination of absorbed dose in a patient irradiated by beams of x or gamma rays in radiotherapy procedures. International Commission on Radiation Units and Measurements ICRU, Report 24, Bethesda

International Atomic Energy Agency (1997) The use of plane parallel ionization chambers in high energy electron and photon beams: An international code of practice for dosimetry. Technical Reports series No. 381, IAEA, Vienna

International Commission On Radiation Units And Measurements (1989) Tissue Substitutes in Radiation Dosimetry and Measurement. Rep. 44, ICRU, Bethesda, MD

J. C. Huang, L. E. Reinstein (Fall 2000) Evaluation of an innovative plastic cube phantom designed to improve the efficiency of accelerator QA. Journal of Applied Clinical Medical Physics, Volume 1, Number 4 DOI: https://doi.org/10.1120/1.1312382

Jan Seuntjens,Marina Olivares, Michael Evans, Ervin Podgorsak (September 2005) Absorbed dose to water reference dosimetry using solid phantomsin the context of absorbed-dose protocols. Med Phys 32 (9), 0094-2405 DOI: https://doi.org/10.1118/1.2012807

K. A. Gifford, D. S. Followill, H. H. Liu, G. Starkschall (2002) Verification of the Accuracy of a Photon DoseCalculation Algorithm. Journal of Applied Clinical Medical Physics, Vol. 3, No. 1, pp. 26-45 DOI: https://doi.org/10.1120/1.1434315

Klein EE, Hanley J, Bayouth J, et al. (2009) Task Group 142 report: quality assurance of medical accelerators. Med Phys 36:4197-4212 DOI: https://doi.org/10.1118/1.3190392

M Allahverdi, A Nisbet, D I Thwaites (1999) An evaluation of epoxy resin phantom materials for megavoltage photon dosimetry. Phys Med Biol. 44/1125 DOI: https://doi.org/10.1088/0031-9155/44/5/001

Nasser, E. William (1999) Waxes, Natural and Synthetic. New York: Marcel Dekker

Practical Course in Reference Dosimetry (January 2014) National Physical Laboratory MV Photon Dosimetry at NPL, UK

Technical Report Series no.398 (2000) Absorbed Dose Determination in External Beam Radiotherapy- An International Code of Practice for Dosimetry Based on Standards of Absorbed Dose to Water. International Atomic Energy Agency (IAEA), Vienna

-- 0 --

Downloads

Published

2018-06-30

Issue

Vol. 5 No. 1 (2018): January - June Issue

Section

Peer-reviewed Article

License

The CC BY-NC 4.0 license lets others remix, tweak, and build upon your work non-commercially, and although their new works must also acknowledge & be non-commercial, they don’t have to license their derivative works on the same terms.
|| View License Deed ||
|| View Legal Code ||
 
Publishing paper with the "Malaysian Journal of Medical and Biological Research" means that the author or authors retain the copyright in the paper.
This journal is granted an exclusive noncommercial reuse license by the author(s), but the author(s) are able to put the paper onto a website, distribute it to colleagues, give it to students, use it in your thesis, etc, so long as the use is not directed at a commercial advantage or toward private monetary gain.
The author(s) can reuse the figures and tables and other information contained in their paper published by Malaysian Journal of Medical and Biological Research in future papers or work without having to ask anyone for permission, provided that the figures, tables or other information that is included in the new paper or work properly references the published paper as the source of the figures, tables or other information, and the new paper or work is not direct at a private monetary gain or commercial advantage.

How to Cite

Rahman, M. A. ., Bhuiyan, M. T. H. ., Rahman, M. M. ., & Chowdhury, M. . (2018). Comparative Study of Absorbed Doses in Different Phantom Materials and Fabrication of a Suitable Phantom . Malaysian Journal of Medical and Biological Research, 5(1), 19-24. https://doi.org/10.18034/mjmbr.v5i1.444