Gamma-ray shielding properties of some dosimetric materials

Sengul, Aycan; Akgüngör, K.; Akkurt, I.

doi:10.1007/s41779-022-00817-z

Cited by 8 publications

(3 citation statements)

References 85 publications

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“…In addition, there is a computer code named XMUDAT [18] that offers tabular evaluation of 𝜇/𝜌, 𝜇 tr /𝜌 or 𝜇 en /𝜌 for many elements, compounds and mixtures. Some of the papers and reports in literature deal with the photon interaction data for different materials either produced experimentally or investigated computationally [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37]. However, these are usually for limited number of materials estimated at certain energy points.…”

Section: Jinst 19 P07035mentioning

confidence: 99%

Comparison of photon interaction coefficients for tumor compositions and healthy tissues simulated by Monte Carlo

Bozkurt,

Sengul

2024

J. Inst.

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This study compares interaction coefficients of photons (namely, mass attenuation, energy absorption and energy transfer coefficients) for some tumor tissues with simlar healthy tissues. Monte Carlo calculations were performed for adenoidcystic carcinoma, melanoma, rectal adenocarcinoma, sarcoma and squamous cell lung carcinoma. The simulation model involved a monoenergetic point source producing a pencil beam. Depending on the parameter under study, average flux, energy flux, or dose deposition from photons that travels in an absorber were scored in the range of 10 keV–20 MeV energy using MCNP6.1. The same model was used to compute the interaction coefficients of health tissues (namely, gastrointestinal tract-small intestine wall, lungs-parenchyma, salivary glands, skin, soft tissue (female+male)) for comparison purposes. The results showed that, depending on the contents of the tumor samples, photon interaction coefficients of a tumor may differ from those of a similar healthy tissue. This behavior was distinct, especially for energies up to 100 keV, and was attributed to the presence of relatively higher atomic number elements in the absorber.

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Section: Jinst 19 P07035mentioning

confidence: 99%

Comparison of photon interaction coefficients for tumor compositions and healthy tissues simulated by Monte Carlo

Bozkurt,

Sengul

2024

J. Inst.

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“…The radiation dose exposure levels of various organs in the body are typically assessed for computed tomography imaging systems. Some of these studies are conducted using Thermoluminescent Dosimeters (TLD), while others rely on simulation methods such as Monte Carlo simulations [17][18][19][20][21][22][23]. Kidney stones that reach a certain size can be fragmented into smaller pieces using various methods.…”

Section: Introductionmentioning

confidence: 99%

Determining the Radiation Dose Levels the Kidney is Exposed to in Kidney Stone Fragmentation Procedures

Sengul,

Gunay,

Kekeç

et al. 2024

IJCESEN

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This study examines the radiation dose levels to which the kidney is exposed during kidney stone fragmentation procedures that utilize scopy imaging. The assessment was conducted using the Alderson Rando phantom and Thermoluminescent Dosimeter (TLD). The study examined various exposure parameters and measured the radiation dose to the kidney over time. The results suggest a direct correlation between exposure duration and radiation dose, emphasizing the need to monitor radiation levels during fluoroscopic interventions, especially due to the kidneys' sensitivity to radiation. Future research should concentrate on optimizing scopy settings to minimize radiation exposure while ensuring diagnostic accuracy and patient safety.

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“…Kütlesel zayıflama katsayısı için deneysel verilere dayalı [3-8] veya hesaplamalı [9][10][11][12][13][14][15] literatür çalışmaları olmasına rağmen bunlar genellikle belirli enerji noktalarında tahmin edilen sınırlı sayıda malzeme içindir. Ek olarak, Berger ve Hubbel, birçok element, bileşik veya karışım için teorik hesaplamalarda oldukça başarılı bir yaklaşım olan XCOM programını geliştirmiştir [8].…”

Section: Introductionunclassified

Monte Carlo Estimation of Mass Attenuation Coefficients of Some ZnO-doped Glass Samples

ŞENGÜL

2023

DEUFMD

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Bu çalışma, Monte Carlo yöntemi kullanılarak ZnO katkılı bazı cam örneklerinin toplam kütle zayıflama katsayılarını hesaplamayı amaçlamaktadır. Simülasyonlar basitçe, silindir şeklinde soğurucu bir malzeme, NaI(Tl) detektörü,kolimatör ve soğurucuya doğru paralel bir ışın olarak yönlendirilen mono-enerjik fotonlar yayan nokta kaynaktan oluşmaktadır. Problem geometrisindeki tüm bileşenler, numune dışındaki malzemelerde herhangi bir etkileşimi önlemek için vakum bir küre ile çevrelenmiştir. Simülasyon düzeneği bu şekliyle, saçılan fotonların dedektördeki toplam akıya katkı yapması engellemiştir. Simülasyonlar, 10 keV-20 MeV enerji aralığında 39 farklı foton enerjisinde GAMOS 6.2 paketi kullanılarak gerçekleştirilmiştir. Bu çalışma .çinko oksitin cam örneklere ilave edilmesinin cam örneklerinin radyasyon soğurma özelliklerini arttırdığını göstermiştir. Çalışmanın sonuçları XCOM değerleri ile karşılaştırıldığında iyi bir uyum görülmektedir. Monte Carlo tekniğinin, basit bir model geometrisi kullanarak, geniş bir enerji aralığında, kütlesel zayıflama katsayılarının hesaplanması için bir alternatif olarak kullanılabileceğini ortaya koymuştur.

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Gamma-ray shielding properties of some dosimetric materials

Cited by 8 publications

References 85 publications

Comparison of photon interaction coefficients for tumor compositions and healthy tissues simulated by Monte Carlo

Comparison of photon interaction coefficients for tumor compositions and healthy tissues simulated by Monte Carlo

Determining the Radiation Dose Levels the Kidney is Exposed to in Kidney Stone Fragmentation Procedures

Monte Carlo Estimation of Mass Attenuation Coefficients of Some ZnO-doped Glass Samples

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