Radiological parameters of composite filler, zirconium and acrylic coating materials used in dental treatment are determined. Mass attenuation coefficients (μm) of these materials have been experimentally determined for 9 different gamma energies emitting from Ra-226 and Eu-152 radioactive sources by using gamma spectrometry system with (3″?×?3″) NaI(Tl) detector. Effective atomic and electron numbers (Zeff, Neff), atomic and electronic cross sections (σt,aandσt,el) have been also obtained for these materials. The obtained results were compared with the NIST database and EGSnrc Monte Carlo (MC) code. It is found that general trends of these parameters are consistent with the literature. The maximum attenuation occurs at 122?keV and it has been found for 1?mm thick samples that 21%, 10% and 2% of the incident radiation have been absorbed by the zirconium, composite and acrylic samples, respectively.
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机译：确定了用于牙科治疗的复合填料，锆和丙烯酸涂料的放射学参数。通过使用具有（3“？×？3”）NaI（Tl）探测器的伽马能谱系统，已经针对从Ra-226和Eu-152放射源发出的9种不同的伽马能量，通过实验确定了这些材料的质量衰减系数（μm）。这些材料还获得了有效的原子数和电子数（Zeff，Neff），原子和电子截面（σt，aandσt，el）。将获得的结果与NIST数据库和EGSnrc Monte Carlo（MC）代码进行比较。发现这些参数的一般趋势与文献一致。最大衰减发生在122？keV处，并且发现对于1？mm厚的样品，锆，复合材料和丙烯酸类样品分别吸收了21％，10％和2％的入射辐射。
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