A Study on Photoneutrons Generated in a Linear Accelerator Head using GEANT4

  • Authors

    • Junho Ko
    • Yoon S ang Kim
    • . .
    2018-11-30
    https://doi.org/10.14419/ijet.v7i4.27.22494
  • Radiotherapy, Radiation protection, Linear accelerator, Photoneutron, GEANT4

  • Medical linear accelerators use high energy for treatment of deeply located tumors. However, linear accelerators using energy above 6 MeV are likely to cause photoneutron contamination. In this paper, we analyzed photoneutrons generated in a linear accelerator head using GEANT4 (GEometry ANd Tracking) simulation. From the simulation results, it was confirmed that the generation of photoneutrons increases in the linear accelerator head as higher the energy of the electron beam.

     

     

  • References

    1. [1] Thariat J, Hannoun-Levi JM, Myint AS, Vuong T & Gérard JP (2013), Past, present, and future of radiotherapy for the benefit of patients, Nature reviews Clinical oncology 10, 52.

      [2] Huh SJ (2006), Future Aspects of Radiation Oncology in Korea, Radiation Oncology Journal, 24, 211-216.

      [3] Khan FM (2009), The Physics of Radiation Therapy, Lippincott Williams & Wilkins.

      [4] Huang WL, Li QF & Lin YZ (2005), Calculation of photoneutrons produced in the targets of electron linear accelerators radiography and radiotherapy applications, Nuclear Instruments and Methods in Physics Raesearch B 229, 339-347.

      [5] Fischer HW, Tabot BE & Poppe B (2006), Activation processes in a medical linear accelerator and spatial distribution of activation products, Physics in medicine and biology 51, N461.

      [6] Wang YZ, Evans MD & Podgorsak EB (2005), Characteristics of induced activity from medical linear accelerators, Medical physics 32, 2899-2910.

      [7] Chao JH, Liu WS & Chen CY (2007), Estimation of Argon-41 concentrations in the vicinity of a high-energy medical accelerator, Radiation Measurements 42, 1538-1544.

      [8] Valentin J (2007), The 2007 Recommendations of the International Commission on Radiological Protection, Oxford: Elsevier, 1-333.

      [9] Becker J (2007), Simulation of neutron production at a medical linear accelerator, Institute of Experimental Physics University of Hamburg, MSc Diploma Thesis, 28-30.

      [10] Park CS, Lim CH, Jung HR & Shin SS (2008), A Study on the Neutron Dose Distribution in Case of 10 MV X-rays Radiotherapy, Journal of Radiological Science and Technology 31, 415-427.

      [11] Kang SK, Ahn SH & Kim CY (2011), A Study on Photon Dose Calculation in 6 MV Linear Accelerator Based on Monte Carlo Method, Journal of Radiological Science and Technology 34, 43-50.

      [12] Park ET, Ko SJ, Kim JH & Kang SS (2014), Evaluation of photoneutron energy distribution in the radiotherapy room, Journal of the Korean Society of Radiological Technology 37, 223-231.

      [13] Chetty IJ, Curran B, Cygler JE, DeMarco JJ, Ezzell G, Faddegon BA & Rogers DWO (2007), Report of the AAPM Task Group No. 105: Issues associated with clinical implementation of Monte Carlo-based photon and electron external beam treatment planning, Medical physics 34, 4818-4853.

      [14] Reynaert N, Van der Marck SC, Schaart DR, Van der Zee W, Van Vliet-Vroegindewei C, Tomsej M & De Wagter C (2007), Monte Carlo treatment planning for photon and electron beams, Radiation Physics and Chemistry 76, 643-686.

      [15] Carrier JF, Archambault L, Beaulieu L & Roy R (2004), Validation of GEANT4, an objectâ€oriented Monte Carlo toolkit, for simulations in medical physics, Medical physics 31, 484-492.

      [16] Poon E & Verhaegen F (2005), Accuracy of the photon and electron physics in GEANT4 for radiotherapy applications, Medical physics 32, 1696-1711.

      [17] http://GEANT4.web.cern.ch.

      [18] Amako K, Guatelli S, Ivanchencko V, Maire M, Mascialino B, Murakami K & Sasaki T (2006), Geant4 and its validation, Nuclear Physics B-Proceedings Supplements 150, 44-49.

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  • How to Cite

    Ko, J., ang Kim, Y. S., & ., . (2018). A Study on Photoneutrons Generated in a Linear Accelerator Head using GEANT4. International Journal of Engineering & Technology, 7(4.27), 106-109. https://doi.org/10.14419/ijet.v7i4.27.22494