X-ray Tomography of N95 Face Mask

The N95 mask sample was scanned by lab-based X-ray micro-scale CT scanner (Zeiss Xradia 620 Versa, Carl Zeiss Inc.). 501 projections were obtained for the specimen. The standard reconstruction algorithm is used to reconstruct sample. The voxel resolution at 350 nm with the narrower (ca. 350 μm x 350 μm) field of view was achieved.

本研究采用实验室级X射线显微CT扫描仪（蔡司Xradia 620 Versa，卡尔蔡司公司）对N95口罩样品进行扫描，共采集得到501幅投影图像。随后采用标准重建算法完成样品的断层重建，最终获得体素分辨率达350 nm、对应视场范围约为350 μm × 350 μm的扫描结果。