Unit Segment Length for olivine EBSD single grain analysis

Unit Segment Length (USL) for olivine single grain analysis by EBSD technique. The script will reconstruct inner grain boundary (subdomain boundary) and outer boundary (grain boundary) and show subdomains with different orientation. It will measure the total length of the inner boundary and USL (total length of subdomain boundary over size of measured grain), distribution of misorientation angle, and the relationship of tilted VS twisted wall. We provide an olivine EBSD data from NWA 2221 which is an ultramafic meteorite.

利用电子背散射衍射技术（EBSD）对橄榄石单晶进行单元段长度（USL）分析。脚本将重建晶粒内部边界（亚域边界）与外部边界（晶界），并展示具有不同取向的亚域。它将测量内部边界的总长度以及USL（亚域边界总长度与测量晶粒尺寸之比），倾斜与扭曲壁之间的取向角分布，以及倾斜与扭曲壁之间的关系。我们提供了来自NWA 2221的橄榄石EBSD数据，NWA 2221是一种超镁铁质陨石。