Journal of Radiation Safety and Measurement

Journal of Radiation Safety and Measurement

Investigating the shielding properties of leaded and lead-free phosphate glass against photons using MCNPX Monte Carlo code

Document Type : Original Article

Authors
Masoomeh Pooladi 1
Sedigheh Sina 1, 2
Mehrnoosh Karimipourfard 1
Zahra Rakeb 1
Sarina Noorzadi 3
1 Nuclear Engineering Department, School of Mechanical Engineering, Shiraz University, Shiraz, Iran
2 Radiation Research Center, Shiraz University, Shiraz, Iran
3 Università di Bologna, Italy
10.22052/rsm.2024.253761.1039
Abstract
Today, the use of lead-containing glasses and heavy transparent shields in various medical applications of radiation, including diagnostic radiology procedures, especially in angiography departments, has become very popular. In such departments, roof shields, transparent shields, and glasses made of lead glass are widely used for the radiation protection of personnel. In this study, the MCNPX Monte Carlo simulation code was used to design transparent and lead-free shields that can be used for radiation protection. For this purpose, two types of phosphate glass containing different percentages of heavy materials were simulated and compared with each other in terms of attenuation coefficients of photons with different energies. After simulating different glass types, the mass attenuation coefficients of each sample were calculated for single-energy photons. After that, by simulating the X-ray spectra used in angiography, the thicknesses of the first and second half-value layers were calculated for each spectrum. The results of this study show that the simulated values of the mass attenuation coefficient of glass types show good agreement with the results of XCOM. According to the results, the designed lead-free glass types have an attenuation comparable to leaded shields, which can be used as a suitable alternative to leaded glass types.
Keywords
radiology
lead glass
lead-free glass
Monte Carlo
radiation protection
  1. K. Doi. Current status and future potential of computer-aided diagnosis in medical imaging. British J. Radiol. 6 (4) (2014) 33-38.
  2. A. J. Einstein, K. W. Moser, R. C. Thompson, M. D. Cerqueira, M. J. Henzlova. Radiation dose to patients from cardiac diagnostic imaging. Circulation 116 (11) (2007) 29-35.
  3. F. A. Stewart, A. V. Akleyev, M. Hauer-Jensen, J. H. Hendry, N. J. Kleiman, T. J. Macvittie, W. H. Wallace. ICRP publication 118: ICRP statement on tissue reactions and early and late effects of radiation in normal tissues and organs–threshold doses for tissue reactions in a radiation protection context. Ann. ICRP 41(1-2) (2012) 1-322.
  4. T. J. Boal, M. Pinak. Dose limits to the lens of the eye: International Basic Safety Standards and related guidance. Ann. ICRP44 (1 suppl) (2015) 112-117.
  5. E. Carinou. IAEA Tec Doc-1731 ‘Implications for occupational radiation protection of the new dose limit for the lens of the eye’. Radiat. Prot. Dosimetry 171 (4) (2016) 554-556.
  6. A. Ramazani-Moghaddam-Arani, M. Esmaeili. Preparation and characterization of Epoxy/Lead oxide nano-composite for shield against gamma and X-rays. Radiation Safety and Measurement, 7(5) (2018) 1-8.
  7. S. A. Hashemi, S. M. Mousavi, R. Faghihi, M. Arjmand, S. Sina, A. M. Amani. Lead oxide-decorated graphene oxide/epoxy composite towards X-Ray radiation shielding. Radiat. Phys. Chem. 146 (2018) 77-85.
  8. S. M. J. Mortazavi, M. Kardan, S. Sina, H. Baharvand, N. Sharafi. Design and fabrication of high-density borated polyethylene nanocomposites as a neutron shield. Int. J. Radiat. Res. 14 (4) (2016) 379-383.
  9. M. Zehtabian, E. Piruzan, Z. Molaiemanesh, S. Sina. Design of light multi-layered shields for use in diagnostic radiology and nuclear medicine via MCNP5 Monte Carlo code. Iranian J. Med. Phys. 12 (3) (2015) 223-228.
  10. S. Sarshough, K. Hadad, R. Faghihi, M. Zebarjad, M. H. Moghim. Application of characteristic X-rays to measure linear attenuation coefficient of nano-composites used in shielding. Iranian J. Radiat. Safety Measurement 7 (3) (2018) 5-10.
  11. N. Asari-shik, L. Gholamzadeh, M. Khajeh-Aminian, M. E. Fazilat-Moaddeli. Study the attenuation ability of the composites containing micro and nano-sized tungsten oxide and lead oxide as diagnostic X-ray shields. Iranian J. Radiat. Safety Measurement 6 (3) (2017) 15-22.
  12. S. R. Hashemi, M. Tajik, E. Asadi-Amirabadi. Design and manufacture of composite flexible shield for neutron-gamma mixed fields. Iranian J. Radiat. Safety Measurement 8 (2) (2019) 25-34.
  13. S. Afkhami-Namila, S. Malekie, S. Kashian, M. Kheradmand-Saadi. Protective evaluation of Polyethylene-Bismuth Oxide composite for use in dental radiography centers. Iranian J. Radiat. Safety Measurement 11 (5) (2023) 57-60.
  14. M. Dejangah, M. Ghojavand, R. Poursalehi, R. Gholipour Peyvandi. Study gamma radiation protection properties of silicon rubber-bismuth oxide nanocomposites: synthesis, characterization and simulation. Iranian J. Radiat. Safety Measurement 5(4) (2016) 37-46.
  15. M. Zarei, S. Sina, S. A. Hashemi. Superior X-ray radiation shielding of biocompatible platform based on reinforced polyaniline by decorated graphene oxide with interconnected tungsten–bismuth–tin complex. Radiat. Phys. Chem. 188 (2021) 109588.
  16. M. Saeedi-Moghadam, M. Tayebi, N. Chegeni, S. Sina, T. Kolayi. Efficiency of non-lead and lead thyroid shields in radiation protection of CT examinations. Radiat. Phys. Chem. 180 (2021) 109265.
  17. A. Aghaz, R. Faghihi, S. Mortazavi, A. Haghparast, S. Mehdizadeh, S. Sina. Radiation attenuation properties of shields containing micro and Nano WO3 in diagnostic X-ray energy range. Int. J. Radiat. Res. 14 (2) (2016) 127-131.
  18. S. A. Hashemi, M. Karimipourfard, S. M. Mousavi, S. Sina, S. Bahrani, N. Omidifar, S. Ramakrishna, M. Arjmand. Transparent sodium polytungstate polyoxometalate aquatic shields toward effective X-ray radiation protection: Alternative to lead glasses. Mater. Today Commun. 31 (2022) 103822.
  19. R. Bagheri, T. Tohidi. Gamma ray shielding study of barium-bismuth-borosilicate glasses. Iranian J. Radiat. Safety Measurement 11 (5) (2023) 113-116.
  20. G. Berkin. Lead free X-ray shielding glass. Int. J. Acad. Res. 5 (5) (2013) 29-34.
  21. K. Won-In, N. Sirikulrat, P. Dararutana. Radiation shielding lead-free glass based on barium-bearing glass using Thailand quartz sands. Adv. Mater. Res. 214 (2011) 207-211.