Structural upgrade in three adjacent 6 MV linac bunkers operating simultaneously to limit exposure to radiation in controlled and uncontrolled areas

Authors

  • A. K. Vargas-Ramírez Facultad de Medicina, Universidad Autónoma del Estado de México
  • E. Torres García Facultad de Medicina, Universidad Autónoma del Estado de México
  • J. Ramírez-Franco Hospital San Javier
  • J. O. Hernández-Oviedo Centro de Cancer ABC, The American British Cowdray Medical Center I.A.P. (CMABC)
  • A. V. Mercado-Quintero Department of Physics, University of York

DOI:

https://doi.org/10.31349/RevMexFis.72.021101

Keywords:

Radiological protection, Ionising radiation shielding, Monte Carlo simulation, Teletherapy, Ambient dose equivalent rate

Abstract

The increasing in cancer incidence and advancements in teletherapy technology have necessitated shielding verification in linear accelerator bunkers, which may involve structural changes. This work proposes a hybrid methodology that combines analytical calculations and Monte Carlo simulation (TOPAS/Geant4 simulation toolkit) to determine, validate, and optimise shielding thicknesses in three adjacent bunkers where next-generation 6 MV linear accelerators will operate simultaneously. Findings indicate that the current secondary barriers in the hospital structure comply with international radiation exposure limits. However, the primary barriers require modifications to ensure radiological protection in both controlled and uncontrolled areas.

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Published

2026-03-09

How to Cite

[1]
A. K. Vargas-Ramírez, E. Torres-García, J. Ramírez-Franco, J. O. Hernández-Oviedo, and A. V. Mercado-Quintero, “Structural upgrade in three adjacent 6 MV linac bunkers operating simultaneously to limit exposure to radiation in controlled and uncontrolled areas”, Rev. Mex. Fís., vol. 72, no. 2 Mar-Apr, pp. 021101 1–, Mar. 2026.

Issue

Vol. 72 No. 2 Mar-Apr (2026): Revista Mexicana de Física

Section

11 Medical Physics

License

Copyright (c) 2026 A. K. Vargas-Ramírez, E. Torres García, J. Ramírez-Franco, J. O. Hernández-Oviedo, A. V. Mercado-Quintero

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Authors retain copyright and grant the Revista Mexicana de Física right of first publication with the work simultaneously licensed under a CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.