Gold grains scanned at various resolutions

Project Cover Image


This project was to develop and test a method to measure the size and shape of particles that are small relative to the scan resolution, in a way that is accurate, reproducible, objective, and resolution-invariant. The scans are of an artificial core containing 12 gold grains embedded in quartz powder and epoxy (some iron filings are also mixed in), with sizes ranging from 100-300 microns (sphere-equivalent diameter), and a range of shapes. There are 12 different scans on two instruments, with varying resolution, X-ray energy, and amount and type of additional embedding material (quartz, garnet) to simulate scanning small grains within progressively larger cores. Scan resolutions range from 10-50 microns.


Usage Information



Nov. 8, 2018


ODC-BY 1.0

Digital Object Identifier


Data Citation

Download Project

The downloadable archive contains all project data; the size of the archive file for this project is 1.38 GB.