Study of effective atomic number of breast tissues determined using the elastic to inelastic scattering ratio

被引：39

作者：

Antoniassi, M. ^{[1
]}

Conceicao, A. L. C. ^{[1
]}

Poletti, M. E. ^{[1
]}

机构：

[1] Univ Sao Paulo, Dept Fis & Matemat, Fac Filosofia Ciencias Letras Ribeirao Preto, Sao Paulo, Brazil

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2011年 / 652卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

Effective atomic number; Elastic scattering; Inelastic scattering; Breast cancer; X-RAY-SCATTERING; COMPTON-SCATTERING; PHOTON SCATTERING; COHERENT; RAYLEIGH;

D O I：

10.1016/j.nima.2010.09.110

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this work we have measured Compton and Rayleigh scattering radiation from normal (adipose and fibroglandular), benign (fibroadenoma) and malignant (ductal carcinoma) breast tissues using a monoenergetic beam of 17.44 keV and a scattering angle of 90 degrees (x=0.99 angstrom(-1)). A practical method using the area of Rayleigh and Compton scattering was used for determining the effective atomic number (Z(eff)) of the samples, being validated through measurements of several reference materials. The results show that there are differences in the distributions of Z(eff) of breast tissues, which are mainly related to the elemental composition of carbon (Z=6) and oxygen (Z=8) of each tissue type. The results suggest that is possible to use the method to characterize the breast tissues permitting study histological features of the breast tissues related to their elemental composition. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：739 / 743

页数：5

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