COMPOSITE LEAD-FREE MATERIALS FOR PROTECTION AGAINST IONIZING AND NON-IONIZING ELECTROMAGNETIC FIELDS AND RADIATION
DOI:
https://doi.org/10.26906/SUNZ.2024.2.179Keywords:
composite material, ionizing, non-ionizing radiation, shielding factorAbstract
The protective properties of materials for shielding non-ionizing and ionizing electromagnetic fields and radiations inherent in medical equipment have been developed and studied. It has been shown that it is advisable to shield stationary magnetic fields with amorphous cobalt and crystalline iron-nickel alloys of small thickness. Their combination avoids the dependence of the shielding coefficient on the magnetic field strength. The protective properties of compositions based on latex and barium sulfate for shielding X-rays have been developed and studied. It was found that at a material thickness of 5 mm, shielding coefficients of 1.4-5.8 can be obtained, depending on the filler content. The protective properties of compositions based on latex and tungsten oxide for shielding gamma radiation have been developed and studied. It was determined that with a material thickness of 5 mm, it is possible to obtain shielding coefficients of 1.1-3.8, depending on the content of the shielding substance. The content of barium sulfate and tungsten oxide at 30 % by weight does not affect the homogeneity of the materials after drying. No surface cracking was detected. The advantage of the obtained compositions is the possibility of their application in a liquid state. Tests of the adhesive properties of the mixtures when applied to concrete and drywall show that they meet the requirements of State Standard ISO 2409:2019. This makes it possible to apply the mixtures to surfaces of any shape in several layers, which makes it possible to adjust the shielding coefficients depending on the radiation and electromagnetic environment.Downloads
References
Gürel Özdemir H., Kaçal M.R., Akman F., Polat H., Agar O. Investigation of gamma radiation shielding characteristics of bismuth reinforced ternary composites in wide photon energy region. Radiation Physics and Chemistry. 2023. Volume 208. 110924. https://doi.org/10.1016/j.radphyschem.2023.110924.
Ambika M.R., Nagaiah N., Suman S. K. Role of bismuth oxide as a reinforcer on gamma shielding ability of unsaturated polyester based polymer composites. Journal of Applied Polymer Science. 2016. 134 (13). РР. 446-457. Doi: 10.1002/app.44657.
Akman F., Kaçal M.R., Almousa N., Sayyed M.I., Polat H. Gamma-ray attenuation parameters for polymer composites reinforced with BaTiO3 and CaWO4 compounds. Progress in Nuclear Energy. 2020. Volume 121. 103257. https://doi.org/10.1016/j.pnucene.2020.103257.
Özkalaycı F. Lead(II) chloride effects on nuclear shielding capabilities of polymer composites. Journal of Physics and Chemistry of Solids. 2020. Volume 145. 109543. https://doi.org/10.1016/j.jpcs.2020.109543.
Akman F. Ogul H., Kaçal M.R., Polat H., Dilsiz K., Agar O. Gamma attenuation characteristics of CdTe-Doped polyester composites. Progress in Nuclear Energy. 2021. Volume 131. 103608. https://doi.org/10.1016/j.pnucene.2020.103608.
Nadin Jamal AbuAlRoos, Mira Natasha Azmana, Noorfatin Aida Baharul Amina, Rafidah Zainon. Tungsten-based material as promising new lead-free gamma radiation shielding material in nuclear medicine. Physica Medica. 2020. Volume 78. Pages 48-57. https://doi.org/10.1016/j.ejmp.2020.08.017.
Cherkashina N.I., Pavlenko V.I., Noskov A.V., Sirota V.V., Zaitsev S.V., Prokhorenkov D.S., Sidelnikov R.V. Gamma radiation attenuation characteristics of polyimide composite with WO2. Progress in Nuclear Energy. 2021. Volume 137. 103795. https://doi.org/10.1016/j.pnucene.2021.103795.
Erkoyuncu İ., Akman F., Ogul H., Kaçal M.R., Polat H., Demirkol İ., Dilsiz K., Ertuğral B. A detailed investigation of gamma and neutron shielding capabilities of ternary composites doped with polyacrylonitrile and gadolinium (III) sulfate. Applied Radiation and Isotopes. 2023. Volume 196. 110789. https://doi.org/10.1016/j.apradiso.2023.110789.
Seon-Chil Kim, Sung-Hyoun Cho. Analysis of the Correlation between Shielding Material Blending Characteristics and Porosity for Radiation Shielding Films. Journals Applied Sciences. 2019. 9(9). 1765. https://doi.org/10.3390/app9091765.
Senyk I., Kuryptia Y., Barsukov V., Butenko O., Khomenko V. Development and application of thin wide-band screening composite materials Physics and Chemistry of Solid State. 2020. 21(4). pp. 771–778. https://doi.org/10.15330/pcss.21.4.771-778.
Білоусова Є.С., Мохамед А.М.А., Линьков Л.М., Борботько Т.В. Електромагнітні екрани на основі наноструктурованих вуглецевмісних матеріалів: монографія. 2018. 317 с.
Barsukov Viacheslav, Senyk Ilona, Kryukova Olena, Butenko Oksana. Composite Carbon-Polymer Materials for Electromagnetic Radiation Shielding. Materials Today: Proceedings. 2018. V. 5. No 8.Part 1. 15909-15914. DOI: 10.1016/j.matpr.2018.06.063.
Halder Krishna Kamal, Tomar Monika, Sachdev V.K., Gupta Vinay. Development of polyvinylidene fluoride–graphite composites as an alternate material for electromagnetic shielding applications. Materials Research Express. Volume 6. № 7. 075324. DOI: 10.1088/2053-1591/ab13dd.
Akman F., Ozkan I., Kaçal M.R., Polat H., Issa Shams A.M., Tekin H.O., Agar O. Shielding features, to non-ionizing and ionizing photons, of FeCr-based composites. Applied Radiation and Isotopes. 2021. Volume 167. 109470. https://doi.org/10.1016/j.apradiso.2020.109470.
Akman Ferdi, Ogul H., Ozkan I., Kaçal M.R., Agar O., Polat H., Dilsiz K. Study on gamma radiation attenuation and non-ionizing shielding effectiveness of niobium-reinforced novel polymer composite. Nuclear Engineering and Technology. 2022. Volume 54. Issue 1, Pages 283-292. https://doi.org/10.1016/j.net.2021.07.006.
