Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Calculation of X-ray spectra characteristics and kerma to personal dose equivalent Hp(10) conversion coefficients: Experimental approach and Monte Carlo modeling

  • Arectout, A. (ERSN, Faculty of Sciences, Abdelmalek Essaadi University) ;
  • Zidouh, I. (LPMS, Faculty of Sciences, Ibn Tofail University) ;
  • Sadeq, Y. (Centre National de radioprotection) ;
  • Azougagh, M. (ENSAM Rabat, Mohammed V University) ;
  • Maroufi, B. (Faculty Ben M'sick, Hassan II University) ;
  • Chakir, E. (LPMS, Faculty of Sciences, Ibn Tofail University) ;
  • Boukhal, H. (ERSN, Faculty of Sciences, Abdelmalek Essaadi University)
  • Received : 2021.01.01
  • Accepted : 2021.07.17
  • Published : 2022.01.25
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Abstract

This work aims to establish some X-ray qualities recommended by the International Standard Organization (ISO) using the half-value layer (HVL) and Hp(10) dosimetry approaches. The HVL values of the following qualities N-60, N-80, N-100, N-150 and N-250 were determined using various attenuation layers. The obtained results were compared to those of reference X-ray beam qualities and a good agreement was found (difference less than 5% for all qualities). The GAMOS (Geant4-based Architecture for Medicine-Oriented Simulations) radiation transport Monte Carlo toolkit was employed to simulate the production of X-ray spectra. The characteristics HVLs, mean energy and the spectral resolution of simulated spectra have been calculated and turned out to be conform to the ISO reference ones (difference less than the limit allowed by ISO). Furthermore, the conversion coefficients from air kerma to personal dose equivalent for simulated and measured spectra were fairly similar (the maximum difference less than 4.2%).

Keywords

Acknowledgement

This research was supported through computational resources of HPC-MARWAN (www.marwan.ma/hpc) provided by the National Center for Scientific and Technical Research (CNRST), Rabat, Morocco.

References

  1. International Atomic Energy Agency, International Basic Safety Standards for Protection against Ionizing Radiation and for the Safety of Radiation Sources. IAEA Safety Series, vol. 115, 1996 (Vienna: IAEA).
  2. International Organization for Standardization: 'X and Gamma Reference Radiation for Calibrating Dosemeters and Doserate Meters and for Determining Their Response as a Function of Photon Energy Part1: Radiation Characteristics and Production Methods', ISO 4037-1:2017.
  3. M. Moralles, D.A.B. Bonifacio, M. Bottaro, M.A.G. Pereira, Monte Carlo and Least-Squares Methods Applied in Unfolding of X-Ray Spectra Measured with Cadmium Telluride Detectors, vol. 580, 2007, pp. 270-273.
  4. D. Kurkova, L. Judas, X-ray tube spectra measurement and correction using a CdTe detector and an analytic response matrix for photon energies up to 160 keV, Radiat. Meas. 85 (2016) 64-72. https://doi.org/10.1016/j.radmeas.2015.12.008
  5. M.R. Ay, M. Shahriari, S. Sarkar, M. Adib, H. Zaidi, Monte Carlo simulation of X-ray spectra in diagnostic radiology and mammography using MCNP4C, Phys. Med. Biol. 49 (2004) 4897. https://doi.org/10.1088/0031-9155/49/21/004
  6. C.C. Guimaraes, M. Moralles, E. Okuno, Performance of GEANT4 in dosimetry applications: calculation of X-ray spectra and kerma-to-dose equivalent conversion coefficients, Radiat. Meas. 43 (2008) 1525-1531. https://doi.org/10.1016/j.radmeas.2008.07.001
  7. R. Taleei, M. Shahriari, Monte Carlo simulation of X-ray spectra and evaluation of filter effect using MCNP4C and FLUKA code, Appl. Radiat. Isot. 67 (2009) 266-271. https://doi.org/10.1016/j.apradiso.2008.10.007
  8. A. Herrati, M. Arib, T. Sidahmed, K. Khalal-Kouache, Establishment of ISO 4037-1 X-ray narrow-spectrum series at SSDL of Algiers, Radiat.Prot.Dosim. 174 (2016) 35-52.
  9. D. Zhang, W. Lai, J. Wu, H. Du, R. Zhao, S. Fan, Establishment of ISO 4037-1 X-ray narrow-spectrum series, J. Eng. 23 (2019) 8858-8861.
  10. International Organization for Standardization: 'X and Gamma Reference Radiation for Calibrating Dosemeters and Doserate Meters and for Determining Their Response as a Function of Photon Energy Part 2: Dosimetry for Radiation Protection over the Energy Ranges from 8 keV to 1,3 MeV and 4 MeV to 9 MeV', ISO 4037-2: 2017.
  11. International Organization for Standardization: 'X and Gamma Reference Radiation for Calibrating Dosemeters and Doserate Meters and for Determining Their Response as a Function of Photon Energy d Part 4: Calibration of Area and Personal Dosemeters in Low Energy X Reference Radiation Fields', ISO 4037-3:2017.
  12. International Organization for Standardization: 'X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy d Part 4: calibration of area and personal dosemeters in low energy X reference radiation fields', ISO 4037-4: 2017.
  13. P. Arce, P. Rato, M. Canadas, I.J. Lagares, GAMOS: A Geant4-based easy and flexible framework for nuclear medicine applications, in: IEEE Nuclear Science Symposium Conference Record, 2008, pp. 3162-3168.
  14. U. Ankerhold, R. Behrens, P. Ambrosi, A prototype ionisation chamber as a secondary standard for the measurement of personal dose equivalent, Hp (10), on a slab phantom, metry. Radiation protection dosi 86 (1999) 167-173. https://doi.org/10.1093/oxfordjournals.rpd.a032939
  15. I. Sechopoulos, E.S. Ali, A. Badal, A. Badano, J.M. Boone, I.S. Kyprianou, A.C. Turner, Monte Carlo reference data sets for imaging research: executive summary of the report of AAPM Research Committee Task Group 195, Med. Phys. 42 (10) (2015) 5679-5691. https://doi.org/10.1118/1.4928676
  16. G.E.A.N.T. Collaboration, Physics reference manual, Versiones: geant4 9 (2016), 0.
  17. D.E. Cullen, J.H. Hubbell, L. Kissel, EPDL97: the Evaluated Photo Data Library97 Version (No. UCRL-50400-Vol. 6-Rev. 5), Lawrence Livermore National Lab., CA (United States), 1997.
  18. S.T. Perkins, D.E. Cullen, S.M. Seltzer, Tables and graphs of electron-interaction cross-sections from 10 eV to 100 GeV derived from the LLNL evaluated electron data library (EEDL), Z=1-100, UCRL-50400 31 (1991) 21-24.
  19. S.T. Perkins, D.E. Cullen, M.H. Chen, J. Rathkopf, J. Scofield, J.H. Hubbell, Tables and Graphs of Atomic Subshell and Relaxation Data Derived from the LLNL Evaluated Atomic Data Library (EADL), Z= 1-100 (No. UCRL-50400-Vol. 30), Lawrence Livermore National Lab., CA (United States), 1991.
  20. I. Sechopoulos, D.W. Rogers, M. Bazalova-Carter, W.E. Bolch, E.C. Heath, M.F. McNitt-Gray, J.F. Williamson, RECORDS: improved reporting of Monte Carlo RaDiation transport studies: report of the AAPM Research Committee Task Group 268, Med. Phys. 45 (1) (2018) e1-e5. https://doi.org/10.1002/mp.12702
  21. HPC-Marwan, URL, https://www.marwan.ma/index.php/services/hpc.