Lunar regolith XRD dataset

Dataset containing X-Ray Diffraction (XRD) patterns and Rietveld refinement of mineralogy of 118 lunar regolith samples (<150 mm size fraction) from all landed Apollo missions. This dataset includes the 2-D images recorded with each analysis (the powder pattern), raw XRD 2θ data (tabular and plotted) for each run, and the average mineral and glass abundances, reported both with the glass modal abundance and on a glass-free basis. X-ray diffraction patterns have been collected using a portable Terra field XRD instrument, with a direct detection CCD, a 30kV 10W Co X-ray source with Kv filter, and a sample holder with a piezoelectric vibration system that places the sample in motion during the analysis, allowing coarser-grained materials to be analyzed, and reducing preferred orientation effects.

本数据集涵盖了来自所有阿波罗载人登月任务的118份月球月壤样本（粒径小于150毫米的粒级组分）的X射线衍射（X-Ray Diffraction, XRD）谱图及矿物学里特韦尔精修（Rietveld refinement）结果。本数据集包含每次分析所记录的二维图像（即粉末衍射谱图）、每次测试的原始X射线衍射2θ数据（以表格和绘图形式呈现），以及平均矿物与玻璃相丰度，同时分别报告了含玻璃相的模态占比和扣除玻璃相后的相对丰度。本数据集的X射线衍射谱图采用便携式Terra野外X射线衍射仪采集，该仪器配备直接探测型电荷耦合器件（CCD）、搭载Kv滤片的30kV 10W钴靶X射线源，以及带有压电振动系统的样品台——测试过程中样品台可带动样品运动，能够分析粒度较粗的样品，并有效降低择优取向效应的影响。

搜集汇总

背景与挑战

背景概述

该数据集包含118个月球土壤样品的X射线衍射（XRD）图谱和矿物学Rietveld精修结果，涵盖所有阿波罗登月任务的样品。数据集提供了2-D图像、原始XRD数据以及矿物和玻璃的平均丰度，使用便携式Terra XRD仪器采集，适用于分析粗粒材料并减少优先取向效应。