DOI: https://doi.org/10.14710/dmj.v12i3.38660

MONTE CARLO NEUTRON DOSE MEASUREMENT IN PROTON THERAPY FOR HEALTHCARE WORKER RADIATION SAFETY

Hadi Lesmana  -  Department of Physics, Faculty of Science and Mathematics, Diponegoro University, Semarang, Indonesia, Indonesia
Wahyu Setia Budi  -  Department of Physics, Faculty of Science and Mathematics, Diponegoro University, Semarang, Indonesia, Indonesia
Rasito Rasito  -  Center for Applied Nuclear Science and Technology (PSTNT), National Research and innovation agency (BRIN), Bandung, Indonesia
*Pandji Triadyaksa orcid scopus  -  Physics Department, Faculty of Science and Mathematics, Diponegoro University, Indonesia

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Abstract

Background: Proton therapy is an innovative and highly advanced external radiation therapy modality for cancer treatment that uses positively charged atomic particles. The usage of proton therapy facilities in Asia has been increasing and will be followed by Indonesia in the short-coming years. In line with its significant benefits, the application of proton therapy also requires radiation protection awareness due to its higher energy used by protons produces scattered photon and neutron radiation in proton interactions. Therefore, optimal verification is needed in the commissioning process for designing proton therapy shielding bunkers. Objective: This research aims to examine the effect of concrete density on proton shielding by calculating the equivalent dose H*(10) of neutrons in the treatment control room (TCR) and the door of the compact proton therapy facility (CPTC) using Particle and Heavy Ion Transport code System (PHITS) simulation software. Method: The proton facility modeled for this simulation uses a compact proton therapy type planned to be built at one of the radiotherapy facilities in Indonesia. The proton therapy bunker model consists of a synchrocyclotron accelerator room and an examination room with standard configurations, wall thicknesses, and modeling areas under compact proton therapy standards. The analysis is focused on assessing the suitability of concrete materials and wall thicknesses and determining the neutron exposure dose values in the TCR and CPTC doors. The geometry, radiation source, and type of concrete in the wall are simulated from a conservative assumption to a more realistic model. Result: At the designated points in the TCR and CPTC door, measurements are taken from the simulation, which indicates that the equivalent dose H*(10) value is below one mSv/year. Conclusion: This value indicates that the dose rate passing through the wall does not exceed the dose limit value already set at one mSv/year for the general public.

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Keywords: Proton Therapy; PHITS; Monte Carlo; Neutron

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Language : EN
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  1. N. . Ipe et al., "SHIELDING DESIGN AND RADIATION SAFETY OF CHARGED PARTICLE THERAPY FACILITIES - Report 1," 2010. [Online]. Available: http://www.ptcog.ch/archive/Software_and_Docs/Shielding_radiation_protection.pdf
  2. R. Mohan, "A review of proton therapy – Current status and future directions," Precision Radiation Oncology, vol. 6, no. 2. John Wiley and Sons Inc, pp. 164–176, Jun. 01, 2022. doi: 10.1002/pro6.1149
  3. U. Schneider, R. A. Hälg, and T. Lomax, “Neutronen in aktiver Protonentherapie: Parametrisierung von Dosis und Äquivalentdosis,” Z. Med. Phys., vol. 27, no. 2, pp. 113–123, 2017, doi: 10.1016/j.zemedi.2016.07.001
  4. H. Owen, A. Lomax, and S. Jolly, "Current and future accelerator technologies for charged particle therapy," Nucl. Instruments Methods Phys. Res. Sect. A Accel. Spectrometers, Detect. Assoc. Equip., vol. 809, pp. 96–104, 2016, doi: 10.1016/j.nima.2015.08.038
  5. S. Agosteo, A. Mereghetti, E. Sagia, and M. Silari, "Shielding data for hadron-therapy ion accelerators: Attenuation of secondary radiation in concrete," Nucl. Instruments Methods Phys. Res. Sect. B Beam Interact. with Mater. Atoms, vol. 319, no. 2014, pp. 154–167, 2014, doi: 10.1016/j.nimb.2013.10.015
  6. F. d’Errico, “NCRP Report no. 144—Radiation protection for particle accelerator facilities National Council on Radiation Protection and Measurements Issued 31 December 2003; revised 7 January 2005: NCRP, Bethesda, MD, USA ISBN: 0-929600-77-0, 499 pp, " Radiat. Prot. Dosimetry, vol. 113, no. 4, pp. 456–457, 2005, doi: 10.1093/rpd/nch479
  7. IAEA, Radiological Safety Aspects of the Operation of Proton Accelerators, Technical Reports Series no. 283. 1988
  8. Y. Makita, T. Nakamura, H. Tsuchidate, and M. Yamazak, "Radiation shielding design of a cancer therapy facility using compact proton synchrotron," J. Nucl. Sci. Technol., vol. 41, pp. 18–21, 2004, doi: 10.1080/00223131.2004.10875634
  9. T. Urban and J. Kluson, "Shielding calculation for the Proton-Therapy-Center in Prague, Czech Republic," Radioprotection, vol. 47, no. 4, pp. 583–597, 2012, doi: 10.1051/radiopro/2012029
  10. M. T. Prusator, S. Ahmad, and Y. Chen, "Shielding verification and neutron dose evaluation of the Mevion S250 proton therapy unit," J. Appl. Clin. Med. Phys., vol. 19, no. 2, pp. 305–310, 2018, doi: 10.1002/acm2.12256
  11. S. Avery, C. Ainsley, R. Maughan, and J. Mcdonough, "Analytical shielding calculations for a proton therapy facility," Radiat. Prot. Dosimetry, vol. 131, no. 2, pp. 167–179, 2008, doi: 10.1093/rpd/ncn136
  12. L. Jägerhofer, E. Feldbaumer, S. Roesler, C. Theis, and H. Vincke, "A Shielding Concept for the MedAustron Facility," EPJ Web Conf., vol. 153, pp. 1–5, 2017, doi: 10.1051/epjconf/201715304006
  13. G. F. García-Fernández et al., "Monte Carlo characterization and benchmarking of extended range REM meters for its application in shielding and radiation area monitoring in Compact Proton Therapy Centers (CPTC)," Appl. Radiat. Isot., vol. 152, no. June, pp. 115–126, 2019, doi: 10.1016/j.apradiso.2019.07.001
  14. R. Tesse, A. Dubus, N. Pauly, C. Hernalsteens, W. Kleeven, and F. Stichelbaut, "Numerical Simulations to Evaluate and Compare the Performances of Existing and Novel Degrader Materials for Proton Therapy," in Journal of Physics: Conference Series, Oct. 2018, vol. 1067, no. 9. doi: 10.1088/1742-6596/1067/9/092001
  15. T. Piotrowski, M. Mazgaj, A. Zak, and J. Skubalski, "Importance of atomic composition and moisture content of cement based composites in neutron radiation shielding," in Procedia Engineering, 2015, vol. 108, pp. 616–623. doi: 10.1016/j.proeng.2015.06.188
  16. K. Niita, T. Sato, H. Iwase, H. Nose, H. Nakashima, and L. Sihver, "PHITS-a particle and heavy ion transport code system," Radiat. Meas., vol. 41, no. 9–10, pp. 1080–1090, 2006, doi: 10.1016/j.radmeas.2006.07.013
  17. T. Sato et al., "Features of Particle and Heavy Ion Transport code System (PHITS) version 3.02," J. Nucl. Sci. Technol., vol. 55, no. 6, pp. 684–690, Jun. 2018, doi: 10.1080/00223131.2017.1419890
  18. H. Kumada, T. Nakamura, M. Komeda, and A. Matsumura, "Development of a multi-modal Monte-Carlo radiation treatment planning system combined with PHITS," AIP Conf. Proc., vol. 1153, no. 2, pp. 377–387, 2009, doi: 10.1063/1.3204547
  19. Z.-Y. Yang et al., "Inter-comparison of Dose Distributions Calculated by FLUKA, GEANT4, MCNP, and PHITS for Proton Therapy."
  20. J. L. Conlin, "Listing of Available ACE Data Tables (LA-UR-17-20709)," 2017
  21. F. S. Englbrecht et al., "A comprehensive Monte Carlo study of out-of-field secondary neutron spectra in a scanned-beam proton therapy gantry room," Z. Med. Phys., vol. 31, no. 2, pp. 215–228, May 2021, doi: 10.1016/j.zemedi.2021.01.001
  22. T. Vanaudenhove, F. Stichelbaut, A. Dubus, N. Pauly, and V. De Smet, "Monte Carlo calculations with MCNPX and GEANT4 for general shielding study―Application to a proton therapy center," Prog. Nucl. Sci. Technol., vol. 4, no. January, pp. 422–426, 2014, doi: 10.15669/pnst.4.422
  23. C. Paper and F. D. Invap, "Tests & Benchmarking Methodology for a 230 Mev Proton Accelerator Calculations," no. March, 2016
  24. T. Goorley et al., "Initial MCNP6 release overview," Nucl. Technol., vol. 180, no. 3, pp. 298–315, 2012, doi: 10.13182/NT11-135
  25. V. Verma, M. V. Mishra, and M. P. Mehta, A systematic review of the cost and cost-effectiveness studies of proton radiotherapy, vol. 122, no. 10. 2016. doi: 10.1002/cncr.29882
  26. IAEA, "No Title," 2006
  27. C. Sunil, "Analysis of the radiation shielding of the bunker of a 230 MeV proton cyclotron therapy facility; comparison of analytical and Monte Carlo techniques," Appl. Radiat. Isot., vol. 110, pp. 205–211, 2016, doi: 10.1016/j.apradiso.2016.01.023

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