质量衰减 meaning in English
mass attenuation
Examples
- Mass attenuation coefficient
质量衰减系数 - 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。 - In order to eliminate the beam - hardening artifacts , most current correction algorithms have to assume that the x - ray beam spectra are known and the mass attenuation coefficients of the detected object related to different energy are given
目前的多数射束硬化校正算法需假设已知ct系统的x射线能谱，并已知构成被测物体的物质关于不同能量的光子的质量衰减系数。 - 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。