Antoniassi M, Conceição A L C, Poletti M E
Departamento de Física-Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, 14040-901 São Paulo, Brazil.
Appl Radiat Isot. 2012 Jul;70(7):1451-5. doi: 10.1016/j.apradiso.2012.02.008. Epub 2012 Feb 18.
In this work we measured X-ray scatter spectra from normal and neoplastic breast tissues using photon energy of 17.44 keV and a scattering angle of 90°, in order to study the shape (FWHM) of the Compton peaks. The obtained results for FWHM were discussed in terms of composition and histological characteristics of each tissue type. The statistical analysis shows that the distribution of FWHM of normal adipose breast tissue clearly differs from all other investigated tissues. Comparison between experimental values of FWHM and effective atomic number revealed a strong correlation between them, showing that the FWHM values can be used to provide information about elemental composition of the tissues.
在这项工作中，我们使用17.44 keV的光子能量和90°的散射角测量了正常和肿瘤乳腺组织的X射线散射光谱，以研究康普顿峰的形状（半高宽）。根据每种组织类型的组成和组织学特征对获得的半高宽结果进行了讨论。统计分析表明，正常脂肪乳腺组织的半高宽分布与所有其他研究组织明显不同。半高宽实验值与有效原子序数之间的比较显示它们之间存在很强的相关性，表明半高宽值可用于提供有关组织元素组成的信息。
