Environmental Radiation Doses from Patients Undergoing Tc-99m DMSA Cortical Renal Scintigraphy

Günay, Osman; Sarıhan, Mucize; Abamor, Evrim; Yarar, Onur

doi:10.22399/ijcesen.589267

Cited by 33 publications

(10 citation statements)

References 10 publications

(8 reference statements)

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“…To nd the Skin dose contamination of the 252 Cf source using SDCC for wide energy regions. In radiation, works have been studied especially in terms of shielding and other purposes besides contamination in literature [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]. Using ICRP107, the 252 Cf radionuclide source is extracted and the results are provided in Table 3.…”

Section: Resultsmentioning

confidence: 99%

A Monte Carlo Study on Skin Dose Contamination Coefficients of 252Cf Radionuclide

Malidarre¹,

Akkurt²

2023

Preprint

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Handling of 252Cf radionuclide source can lead to contamination of the skin surface in case of an accident. There is still an increasing demand to have dose conversion coefficients of each primary particle and different sources. On the other hand, there is no literature that presents actual values and methods for determining skin dose contamination and its coefficients for 252Cf source. Thus, this paper is concerned with quantifying the received dose rate and its coefficients in the skin as a result of a contamination scenario. The equivalent and absorbed dose rates, as well as SDCC, are estimated using MCNPX Monte-Carlo simulation’s well-established calculation code in the skin. Two methods i.e. watt fission and doppler effect are proposed for calculating particles’ spectra, and consequently, with the help of flux–to–dose conversion function Equivalent dose rates are derived. Also, the SDCC on the skin surface for different particles is obtained and these values are reported for 252Cf radionuclide. The particles of interest in this study are neutrons and gamma photons. The new dose coefficients allow the estimation of the skin dose contamination in radionuclides of interest.

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Section: Resultsmentioning

confidence: 99%

A Monte Carlo Study on Skin Dose Contamination Coefficients of 252Cf Radionuclide

Malidarre¹,

Akkurt²

2023

Preprint

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“…Thus besides other code it has been in a variety of studies in radiation fields [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39]. In the present study, the FLUKA Monte Carlo Code is utilized to calculate the radiation shielding capacity of the HAP+ Fe2O3 samples [18,[40][41].…”

Section: Fluka Monte Carlo Code Environmentmentioning

confidence: 99%

Examining the HAP+ Fe2O3 Response in the Magnetic Field, Radiation Protection and Mechanical Properties

Malidarre

Akkurt²,

Korkmaz³

et al. 2023

Preprint

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HAP (Hydroxyapatite) bio-composite has been used extensively to repair and replace bone and teeth tissues in the human body. However, because of the poor mechanical features of HAP bio-composites, significant enhancements in the strength and toughness of pure HAP have been achieved by the insertion of various alloys and materials into HAP. Accordingly, the present study evaluates the radiation shielding and mechanical features of the Fe2O3 -reinforced HAP composite as an implant for 0.0, 2.5, 5.0, and 7.5 wt.% Fe2O3. Also, the composite response in a magnetic field has been investigated. Employing FLUKA Monte Carlo Code, radiation shielding factors are obtained. In addition, the mechanical characteristics of the studied composites are evaluated using the theoretical method. Findings reveal that increasing the Fe2O3 contents in HAP bio-composite enhances the preferred samples’ radiation shielding and mechanical qualities. Furthermore, in the absence of a magnetic field, the particles' spatial map exhibits symmetric behavior along the x-axis, however, a different trend is observed in the presence of a magnetic field with a value of Bx=5 microT.

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“…In this regard, consistent research has been conducted to develop efficient strategies to decrease the potential risk of radiation exposure for workers and patients (14)(15)(16)(17)(18)(19). Accordingly, finding effective radiation protection materials can be challenging.…”

Section: Introductionmentioning

confidence: 99%

Advances in Polymeric Neutron Shielding: The Role of Benzoxazine-h-BN Nanocomposites in Nuclear Protection

et al. 2023

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Given their substantial neutron capture cross-section, extreme hardness, and high chemical and thermal stability, boron-based materials are widely used as building blocks to protect against highly ionizing radiations such as gamma rays and neutrons. Indeed, uncontrolled nuclear radiation exposure can be highly hazardous to radiation workers and the public. In this sense, this work presents an extensive study and experimental evaluation of the nuclear shielding features of hexagonal-boron nitride (h-BN) based nanocomposite, where bisphenol-A based polybenzoxazine (BA-PBz) was used as matrix. The neutron shielding studies were carried out at the nuclear research reactor of Algeria NUR. The surface treatment of h-BN nanoparticles was confirmed by FTIR and XPS techniques. The curing behavior and the degradation phenomena of the nanocomposites were evaluated by DSC-TGA analyses. The distribution of h-BN nanoparticles within the polymer matrix was assessed by TEM and SEM. The results showed that the developed boron nitride-based nanocomposite exhibits intriguing shielding performances and good thermal stability. The DSC-TGA tests exhibit high degradation temperature that reach 279°C. The highest performances were obtained at an h-BN concentration of 7 wt%, where the macroscopic cross was found to be (Σ = 3.844 cm–1) with a screening ratio of (S = 96.12%), equivalent to a mean free path (λ) of 0.138 cm.

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Environmental Radiation Doses from Patients Undergoing Tc-99m DMSA Cortical Renal Scintigraphy

Cited by 33 publications

References 10 publications

A Monte Carlo Study on Skin Dose Contamination Coefficients of 252Cf Radionuclide

A Monte Carlo Study on Skin Dose Contamination Coefficients of 252Cf Radionuclide

Examining the HAP+ Fe2O3 Response in the Magnetic Field, Radiation Protection and Mechanical Properties

Advances in Polymeric Neutron Shielding: The Role of Benzoxazine-h-BN Nanocomposites in Nuclear Protection

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