Künzel Roseli, Okuno Emico
Universidade de São Paulo, Instituto de Física, Departamento de Física Nuclear, Cidade Universitária, CEP 05508-900, São Paulo, SP, Brazil.
Appl Radiat Isot. 2012 Apr;70(4):781-4. doi: 10.1016/j.apradiso.2011.12.040. Epub 2012 Jan 6.
This work presents a study on the effects of the particle size, material concentration and radiation energy on the X-ray absorption. CuO nanoparticles and microparticles were incorporated separately into a polymeric resin in concentrations of 5%, 10% and 30% relative to the resin mass. X-ray absorption by these materials was analyzed with a CdTe detector. The X-ray absorption is higher for the nanostructured material compared to the microstructured one for low energy X-ray beams for all CuO concentrations.
这项工作展示了一项关于粒径、材料浓度和辐射能量对X射线吸收影响的研究。将CuO纳米颗粒和微米颗粒分别以相对于树脂质量5%、10%和30%的浓度掺入聚合物树脂中。用碲化镉探测器分析这些材料的X射线吸收情况。对于所有CuO浓度，在低能X射线束下，纳米结构材料的X射线吸收比微结构材料更高。
