Characterization and Dosimetry of 15-MeV Electron Beam from Elekta Synergy Platform Linear Accelerator Using Square Field Applicators

Authors

  • Sant Pal Singh
  • Asita Kulshreshtha
  • Anoop Kumar Srivastava
  • Sumit Kumar Srivastava

DOI:

https://doi.org/10.47750/pnr.2022.13.S03.076

Keywords:

Ionizing Radiation, Percent Depth Dose, Beam Profile, Absolute Dose.

Abstract

Background: Ionizing radiations from linear accelerators to deliver radiation therapy for cancer patients in India are being used for more than five decades. The study involves the use of various recommendations and protocols for dosimetric verification and characterization of the electron beam of 15-MeV from the Elekta Synergy platform linear accelerator.
Introduction: This study aimed to present the dosimetric characteristics of the absolute dose to water from the Elekta Synergy platform linear accelerator using the reference dosimetry technique with plane-parallel ionization chambers for an electron beam of energy 15-MeV. This article describes the verification of the percent depth dose (PDD) and beam profile (In-plane and Cross-plane) of the electron beam.
Methods and materials: The experimental setup comprise an Elekta Synergy platform linear accelerator and a dosimetry system containing water phantom and assembly of reference dosimetry. The plane-parallel ionization chamber and digital electrometer were coupled with the experimental phantom. The measurements were performed using the radiation field analyzer (RFA) system under AERB-Mumbai protocols.
Results and Discussion: It was the inference that the Elekta Synergy platform linear accelerator is more efficient and reliable rather than other conventional linear accelerators because of its online imaging technology to perform intensity-modulated and image-guided radiation therapy. The value of R50 for the 15 MeV electron beam obtained from the PDD curve is found to be 59 mm. The TPS calculated value of absolute dose to water for 15 MeV electron beam was 1.0000 NC/MU.
Conclusion: It is concluded that the clinical utilization range of 15 MeV electron beam from Elekta Synergy platform linear accelerator was 2-5 cm.

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Published

2022-09-22

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Section

Articles

How to Cite

Characterization and Dosimetry of 15-MeV Electron Beam from Elekta Synergy Platform Linear Accelerator Using Square Field Applicators. (2022). Journal of Pharmaceutical Negative Results, 465-471. https://doi.org/10.47750/pnr.2022.13.S03.076