DETERMINATION RISK OF BREMSSTRAHLUNG RADIATION PRODUCED BY BETA-RAY
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Abstract
When interacting with absorption materials, beta rays, which are emitted by isotopes, are harmful because bremsstrahlung (braking) radiation is produced. Therefore, the efficiency of a shielding material can be improved by considering the bremsstrahlung radiation generated by the material’s beta ray absorption. In this study, to determine the risk of bremsstrahlung radiation produced by beta rays, the fractions of beta energy transformed into bremsstrahlung radiation were calculated for beta emitters in the energy ranges of 0.0026–0.1734, 0.205–0.694, and 0.9345–2.640 MeV, using five different absorption materials (13Al, 26Fe, 48Cd, 74W, and 82Pb). The relationship between the fractions of beta energy transformed into bremsstrahlung radiation by the five shielding materials and the maximum energies of some beta emitters was studied to determine the most suitable beta-ray shielding materials to effectively minimize bremsstrahlung radiation. The results showed that the fractions of beta energy transformed into bremsstrahlung radiation increased as the beta energy and the atomic number of the shielding material increased. The fraction of beta energy transformed into bremsstrahlung radiation in 13Al ˂ 26Fe ˂ 48Cd ˂ 74W ˂ 82Pb.Therefore, beta ray shields should be made with low atomic number materials to reduce the generation of bremsstrahlung radiation. Practically, beta shields made from materials with atomic numbers greater than 13 are rarely employed; notably, aluminum successfully decreased the production of bremsstrahlung radiation. However, it is also necessary to use materials with medium and high atomic numbers as secondary beta shields to reduce the effect of the bremsstrahlung radiation photons formed by the interaction between beta rays and shielding materials.
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References
Ahmed Fadhil Mkhaiber and Naz T. Jarallah. (2022) Study the Relationship between Bremsstrahlung Dose Rate and The Energy of Beta Ray for different Types of Shiels", Malaysian Journal of Science, vol.4, no.2, pp. 47-54 ,47.
Alajerami, Y.S., Drabold, D., Mhareb, M.H.A., Cimatu, Katherine Leslee A., Chen, Gang and kurudirek M. (2020), Radiation Shielding Properties of Bismuth Borate Glasses Doped with Different Concentrations of Cadmium Oxides, Ceramics International, vol.46, pp.12718- 12727.
Amato, E. and Lizio, D. (2009), Plastic materials as a radiation shield for β − sources: a comparative study through Monte Carlo calculation, J. Radiol. Prot.,vol.29, no.2, pp.239–250.
A Mangiarotti and M N Martins. (2017), A review of electron–nucleus bremsstrahlung cross sections between 1 and 10 MeV, Radiation Physics and Chemistry,vol.141,pp.312-338.
Daniel R. McAlister. (2018), Gamma Ray Attenuation Properties of Common Shielding Materials, PG Research Foundation, Inc. University Lane Lisle, USA, June 18.
Davis, J.R. (2001), Alloying: Understanding the Basics", ASM International.
Duaa Abed Salim, and Sameera Ahmed Ebrahim. (2019) Measurement of Radon concentration in College of Education, Ibn Al- Haitham buildings using Rad-7 and CR-39 detector, Energy Procedia, vol.157, pp. 918–925.
H.C. Manjunatha. (2020), Empirical formula for beta-particle-induced bremsstrahlung yields, Pramana – J. Phys., vol. 94, no. 1.
James, E, Turner. (2007), Atoms, radiation and radiation protection", WILEY-VCH Verlag GmbH & Co.KGaA, Weinheim.
M. Wang ,G.Audi, A.H. Wapstra, F.G. Kondev, M. MacCormick, X.Xu and B. Pfeiffer. ( 2012), The Ame2012 atomic mass evaluation,Chinese Physics C,vol. 36, no.12, pp.1603–2014.
Martin J.E. (2006) Physics for Radiation Protection, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 3rd ed.
Michael F. (2003). Handbook of Radioactivity Analysis, (USA), Elsevier Science.
Mirji, Rajeshwari and Lobo, Blaise. (2017), Radiation shielding materials: A brief review on methods, scope and significance, In Proceedings of the National Conference on Advances in VLSI and Microelectronics, Huballi, India, pp.96-100.
Murtadha S Nayyef ., Naz T Jarallah. (2019) Study Mass Parabola and Most Stable Isobar from Some Isobaric Nuclides, AIP Conference Proceedings. 2190, 020007.
Nadin Jamal Abu Al Roos, Azman Mira Natasha, Amin Noor fatin Aida Baharul and Zainona, Rafidah. (2020), Tungsten-based material as promising new lead-free gamma radiation shielding material in nuclear medicine, Physica Medica, vol.78, pp.48-57.
Serkan Akkoyun, Tuncay Bayram, Nihat Yildiz. (2016), Estimations of Radiation Yields for Electrons in Various Absorbing Materials, Science Journal (CSJ), vol. 37, no.2, pp. 59-65.
Sharma, H.,Rawal, N. and Mathew, B. B. (2015), The Characteristics, Toxicity and Effects of Cadmium, International Journal of Nanotechnology and Nano science, vol. 3, pp.1-9.
Thomas E. Johnson. (2017) Introduction to Health Physics, Fifth Edition. McGraw-Hill Education.
Thomas, G. A. and Symonds, P. (2016) Radiation Exposure and Health Effects – is it Time to Reassess the Real Consequences, Clinical Oncology, vol. 28, no. 4, pp. 231–236.
R.Wesley, Pelt, Van and Drzyzga, Michael. (2007), Beta Radiation Shielding with Lead and Plastic Effect on Bremsstrahlung Radiation when Switching the Shielding Order, The Radiation Safety Journal, vol. 92, no.1, pp.13–17.