al-Bahri J S, Spyrou N M
Department of Physics, University of Surrey, Guildford, Surrey, U.K.
Appl Radiat Isot. 1998 Dec;49(12):1677-84. doi: 10.1016/s0969-8043(97)10106-3.
Compton (incoherently) scattered photons which are directly proportional to the electron density of the scatterer, have been employed in characterising human breast tissues. Gamma ray photons scattered incoherently from normal and pathological breast tissue samples of nine breast cancer patients were measured using a high purity germanium detector and an americium (Am-241) source. The breast tissue samples were obtained from female patients undergoing mastectomy. The samples were examined in freeze dried form and the results were corrected for the reduction in the water content of each tissue type by use of the Mixture Rule. This study is aimed at providing electron density information in support of the introduction of new tissue substitute materials for mammography phantoms.
与散射体电子密度成正比的康普顿（非相干）散射光子已被用于表征人类乳腺组织。使用高纯锗探测器和镅（Am-241）源测量了来自9名乳腺癌患者的正常和病理乳腺组织样本的非相干散射伽马射线光子。乳腺组织样本取自接受乳房切除术的女性患者。样本以冻干形式进行检查，并通过混合法则对每种组织类型水分含量的减少进行校正。本研究旨在提供电子密度信息，以支持为乳腺摄影体模引入新的组织替代材料。
