Evaluation of 1.5mm Lead Shield for Radiological Protection and Comparison of Calculated and Measured Results of Equivalent Dose

Alhassan, Mustapha; Khan, Behram; Baraya, Jamilu Tijjani

doi:10.4314/jasem.v23i12.17

Cited by 5 publications

(5 citation statements)

References 11 publications

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“…This indicates that the HVL is dependent on the energy range, not just the magnitude of the energy. The effect of an increase in La2O3 concentration on the variation of HVL at any given energy was also observed in (Figure 2-9), which was previously discussed in Alhassan et al (2020).…”

Section: Resultssupporting

confidence: 76%

Constancy of the Half Value Layer of Cobalt-doped borate glasses with Lanthanum Oxide Additive at Extremely High Radiation Energy

Isa¹,

Alhassan²,

Ibrahim³

2023

jasem

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Radiation shielding is essential for protecting workers, patients, and the environment from harmful effects of radiation. To achieve effective and non-toxic shielding, scientists are interested in developing lead-free materials with low thickness that can still attenuate radiation. This is where the concept of Half Value Layer (HVL) comes in. The aim of this study is to investigate the nature of the HVL of Cobalt-doped borate glasses with five different concentrations of Lanthanum oxide (La2O3) additive at various energy levels. Phy-X/PSD software was used to simulate radiation exposure and determined the HVL values for energies within the order of 0-10 keV, 10 – 100 keV, 100 keV – 1 MeV, 1 – 10, 10 – 100, 100 – 1,000, 1,000 – 10,000, and 10,000 - 100,000 MeV. The results showed that the HVL values fluctuated depending on the energy range of the incident radiation, but they remained constant within a mean value at extremely high energies. These findings can help manufacturers to determine the appropriate thicknesses and the amounts of (La2O3) additive for different applications of this glass system.

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Section: Resultssupporting

confidence: 76%

Constancy of the Half Value Layer of Cobalt-doped borate glasses with Lanthanum Oxide Additive at Extremely High Radiation Energy

Isa¹,

Alhassan²,

Ibrahim³

2023

jasem

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“…Half Value Layer, (HVL) is defined as the thickness of the material that is capable of reducing the radiation energy or intensity to half of its incident energy or intensity respectively. HVL varies based on the energy variation (Alhassan et al, 2020) and the nature of the radiation. HVL can be calculated using (Equation 5).…”

Section: Half Value Layer (Hvl)mentioning

confidence: 99%

Effect of La2O3 Additive on the Radiation Shielding Properties of Cobalt-doped Borate Glasses

Alhassan¹,

Ibrahim²,

Muazu³

2023

jasem

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Radiation protection becomes a necessary action in radiology, Nuclear Medicine, Radiotherapy and other institutions which make use of radiation. The aim of this work is to evaluate the radiation protection features of cobalt-doped borate glass with La2O3 additive. The glasses named here as S1, S2, S3, S4 and S5 with 0, 0.5, 1, 1.5 and 2 mol% of La2O3 respectively were assessed for their Linear Attenuation Coefficient, LAC, Mass Attenuation Coefficient, MAC, Half value Layer, HVL and Effective Atomic Number Zeff. We found that the glasses have LAC, MAC and Zeff higher than ordinary concrete and Ilmenite concrete, especially S3 which has the concentration of 1 mol% of La2O3 and has lowest HVL at lower energies below 0.1 MeV and above 4 MeV than the other samples, and also found that S5 with 2 mol% of La2O3 is more advantageous for energy range 0.1 - 4 MeV. We therefore concluded the applicability of these glasses for radiation shielding and that the addition of La2O3 increases their radiation protection features.

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“…105, provides the same dose limit value for radiation workers, namely not exceeding 20 mSv/year. It should be noted that radiographic examinations use a low radiation energy range of 40-120 keV, however, the risk of radiation exposure can still occur due to improper installation or use when carrying out radiographic examinations [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Assessment Awareness and Knowledge of Apron to Protect Radiographer During Radiographic Examination

2023

FEM

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Aims: Empowering radiation workers with enhanced awareness and knowledge to effectively manage and minimise the risk of radiation exposure. The aim was to determine the level of awareness and knowledge of radiographers about aprons as personal protective equipment from radiation exposure during radiographic examinations. Methodology: The research study employed a research method that involved 26 respondents who were radiographers. The objective of the study was to assess the level of awareness and knowledge regarding the apron. This assessment was done by analysing the results of both pre-test and post-test examinations, then statistical analysis was carried out using a paired sample t-test to determine the increase in awareness and knowledge after providing learning and practical materials with a p-value < 0.05. Results: The research results showed that the awareness and knowledge of aprons had an average pre-test percentage score of 50% before providing material and practice on aprons, whereas after providing material and practice on aprons, the average post-test percentage value increased by 95%. Furthermore, the results of the paired sample t-test showed that there was an increase in radiographers' awareness and knowledge about aprons with a p-value <0.001. Conclusion: Assessing the awareness and knowledge of radiographers through the distribution of questionnaires is an initial means of identifying areas for improvement within the radiology department. This allows for the implementation of training programs or courses aimed at enhancing awareness and understanding of aprons and the significance of radiation protection in the field of diagnostic radiology.

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Evaluation of 1.5mm Lead Shield for Radiological Protection and Comparison of Calculated and Measured Results of Equivalent Dose

Cited by 5 publications

References 11 publications

Constancy of the Half Value Layer of Cobalt-doped borate glasses with Lanthanum Oxide Additive at Extremely High Radiation Energy

Constancy of the Half Value Layer of Cobalt-doped borate glasses with Lanthanum Oxide Additive at Extremely High Radiation Energy

Effect of La2O3 Additive on the Radiation Shielding Properties of Cobalt-doped Borate Glasses

Assessment Awareness and Knowledge of Apron to Protect Radiographer During Radiographic Examination

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