Tm2O3 Takviyeli 3D Baskı Fotopolimer Reçinesinin Gama Radyasyonuna Karşı Koruma Performansı

Abstract

Tıp ve endüstri gibi alanlarda iyonlaştırıcı radyasyonun artan kullanımı, geleneksel kurşun bazlı koruyucu malzemelere alternatif olarak toksik olmayan ve hafif çözümlere olan ihtiyacı artırmıştır. Bu çalışma, 3D baskı teknolojisi için uygun yüksek atom numaralı tulyum oksit (Tm2O3) takviyeli fotopolimer reçinelerin radyasyon koruma performansını incelemeyi amaçlamaktadır. Bu çalışmada, dört farklı ağırlık oranında takviye (0%, 10%, 30% ve 50%) içeren kompozitler, GAMOS Monte Carlo simülasyon platformu ile 59, 511 ve 1173 keV enerji seviyelerinde incelenmiştir. Elde edilen veriler, Tm2O3 konsantrasyonu arttıkça doğrusal zayıflama katsayısının (LAC) ve kütle zayıflama katsayısının (MAC) arttığını göstermiştir. Aynı zamanda, mühendislik uygulamaları için kritik olan yarı değer tabakasında (HVL) ve ortalama serbest yolda (MFP) önemli bir azalma gözlemlenmiştir. En yüksek koruma verimliliği, özellikle fotoelektrik etkileşimin baskın olduğu düşük enerji bölgesinde, %50 Tm2O3 içeren numunede gözlemlenmiştir. Bu nedenle, Tm2O3 ile güçlendirilmiş fotopolimer reçinelerin, özellikle düşük ve orta enerjili gama radyasyonuna karşı, 3D yazıcılar aracılığıyla üretilebilen özelleştirilmiş ve etkili bir koruma çözümü sunduğu kanıtlanmıştır.

Keywords

• Gama Radyasyonu
• Radyasyon Zırhlama
• GAMOS
• Tulyum Oksit

Gamma radiation shielding performance of Tm2O3 reinforced 3D printing photopolymer resin

Abstract

The increasing use of ionizing radiation in fields such as medicine and industry has enlarged the need for non-toxic and lightweight solutions as alternatives to traditional lead-based shielding materials. This study investigates the radiation shielding performance of high atomic number Thulium oxide (Tm₂O₃) reinforced photopolymer resins suitable for 3D printing technology. The analysis is conducted using theoretical modeling and Monte Carlo simulations. Composites with reinforcement ratios of 0%, 10%, 30%, and 50% (wt.%) were evaluated at photon energies of 59, 511, and 1173 keV using the GAMOS simulation platform. The data obtained showed that the linear attenuation coefficient (LAC) and mass attenuation coefficient (MAC) increased as the Tm₂O₃ concentration increased. At the same time, a substantial decrease was observed in the half-value layer (HVL) and mean free path (MFP), which are critical for engineering application. In addition, MAC results obtained from the GAMOS simulation and the XCOM NIST database were compared. The highest shielding efficiency was observed in the sample containing 50% Tm₂O₃, mainly in the low-energy region where photoelectric interaction is dominant. Therefore, it has been proven that Tm₂O₃-reinforced photopolymer resins offer a customized and effective shielding solution, particularly against low and medium-energy gamma radiation, which can be produced via 3D printers.

Keywords

• Gamma Ray
• Radiation Shielding
• GAMOS
• Thulium Oxide
• Rare Earth Oxide

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