Byng J W, Mainprize J G, Yaffe M J
Department of Medical Biophysics and Radiology, University of Toronto and Imaging Research, Sunnybrook Health Science Centre, Ontario, Canada.
Phys Med Biol. 1998 May;43(5):1367-77. doi: 10.1088/0031-9155/43/5/026.
A pulse-height spectroscopic technique is used to measure the linear attenuation coefficients of commercially available composite phantom materials designed to simulate the attenuation characteristics of breast fat and breast glandular tissue. The manufacturers have specified the composition of these materials with the goal of matching the linear attenuation coefficients of breast tissues, calculated using the mixture rule. Over the energy range 18 to 100 keV, measurements from these materials are in close agreement with manufacturers' predictions and with previously measured linear attenuation coefficients of breast tissue samples.
一种脉冲高度光谱技术被用于测量市售复合体模材料的线性衰减系数，这些材料旨在模拟乳腺脂肪和乳腺腺组织的衰减特性。制造商已指定了这些材料的成分，目的是使其与使用混合法则计算出的乳腺组织的线性衰减系数相匹配。在18至100keV的能量范围内，这些材料的测量结果与制造商的预测以及先前测量的乳腺组织样本的线性衰减系数密切吻合。
