mass attenuation coefficient
英 [mæs əˌtenjʊˈeɪʃn ˌkəʊɪˈfɪʃnt]
美 [mæs əˌtenjʊˈeɪʃn ˌkoʊɪˈfɪʃnt]
质量衰减系数
双语例句
- Especially, the algorithm obtains the phantom's mass attenuation coefficient and spectrum of the CT system at the same time.
特别地，该算法在给出系统的X射线能谱估计的同时，还给出了构成模体的物质关于不同能量的光子的质量衰减系数的估计。 - When the wavelength increases the maximal mass attenuation coefficient reduces and the corresponding optimum size of the spheres increases.
随波长增加，最大质量消光系数减小，相应的最佳粒径增大； - The paper also describes a measuring method of mass attenuation coefficient, and gives an experimental result of a mean effective photon path length within one-litre-volume source of a concave-cup form.
文中还介绍了一种测量体源质量减弱系数（μ/ρ）的方法，并给出1L凹形杯体源的平均有效光子行程长度l的实验结果。 - The results show that the range of granularity in the mass attenuation coefficient is narrower when the wavelength is shorter.
结果表明：当波长较短时，有较大质量消光系数的粒径范围较窄； - Firstly, an estimation algorithm for spectrum of the CT system is presented in the paper by using a standard cylinder or wedge phantom, where the mass attenuation coefficient of the contained material of the phantom is not necessarily to be known.
本文首先给出了由标准均匀圆柱状模体或楔状模体估计CT系统的X射线能谱的算法，该算法不必已知构成模体的物质关于不同能量的光子的质量衰减系数。 - The principle of measurement, choice of γ-ray source, response of lithium glass to γ-rays and mass attenuation coefficient of γ-rays for the material are discussed.
讨论了测量原理、γ源的选择、锂玻璃探头对γ射线的响应并测定了氯化球团料的γ射线质量衰减系数。 - A relative mathematic model related to energy of rays and mass attenuation coefficient has been deduced according to the principles of the interactions between X-ray or γ-ray, substances, the characteristics of component distribution of bone tissues and radiation attenuation.
作者从X射线和γ光子与物质相互作用出发，根据骨组织的成分分布和辐射衰减特性，提出了射线能量与质量衰减系数之间的相关数学模型。