Parthasaradhi K, Rao B M, Prasad S G
Division of Medical Physics, Evanston Hospital, Northwestern University Medical School, Illinois 60201.
Med Phys. 1989 Jul-Aug;16(4):653-4. doi: 10.1118/1.596325.
A study of effective atomic numbers for biological materials such as bone, muscle, spleen, liver, mucin, and water has been carried out in the energy region 1 to 50 MeV for photons, electrons, and He ions. It is noticed that the effective atomic number for photons and electrons increases with energy, and remains, more or less the same, for He ions.
对诸如骨骼、肌肉、脾脏、肝脏、粘蛋白和水等生物材料的有效原子序数进行了研究，研究范围为1至50兆电子伏能量区域内的光子、电子和氦离子。可以注意到，光子和电子的有效原子序数随能量增加，而氦离子的有效原子序数或多或少保持不变。
