Numerous studies of cometary dust have shown that it has a fairly complex hierarchical structure. At the same time, space missions have provided evidence of solid particles. Computer modeling of light scattering, for which agglomerate debris particles were used, showed that the characteristics of the scattered light strongly depend on the presence of solid particles. We propose a model that makes it possible to fractalize the agglomerate debris particles. A particle constructed in accordance with the proposed model combines large and small fragments. Depending on the model parameters, you can make the particle fluffier or more compact. A comparison of the degree of linear polarization between quasi-fractal porous particles and solid particles, as well as between quasi-fractal porous particles and Maxwell Garnett particles is carried out. It has been established that there is the difference between really porous particles and particles, for which the porosity is taken into account by the Maxwell Garrett theory. We recommend using the Maxwell Garnett theory only for studying uniformly distributed inclusions, and for quasi-fractal structures it is better to use the exact calculations.

对彗星尘埃的大量研究表明，它具有相当复杂的层次结构。同时，太空任务提供了固体粒子的证据。使用聚集碎片颗粒的光散射计算机模型表明，散射光的特性很大程度上取决于固体颗粒的存在。我们提出了一个模型，可以将聚集的碎片颗粒分形。根据所提出的模型构造的粒子结合了大小碎片。根据模型参数，您可以使粒子更蓬松或更紧凑。对准分形多孔粒子与固体粒子之间以及准分形多孔粒子与Maxwell Garnett粒子之间的线性极化程度进行了比较。已经确定在真正多孔的颗粒和颗粒之间存在差异，麦克斯韦加勒特理论考虑了孔隙率。我们建议仅将 Maxwell Garnett 理论用于研究均匀分布的夹杂物，而对于准分形结构，最好使用精确计算。