Hyperspectral X-ray CT Scans of Mineralized Ore with Gold and Lead Deposits

A hyperspectral X-ray CT projection dataset of a mineralized ore sample containing small gold and galena deposits. The data was acquired using a laboratory micro-CT scanner with an energy-sensitive HEXITEC detector at The University of Manchester's Henry Moseley X-ray Imaging Facility. It includes all relevant files for reconstruction, such as a 4D sinogram, geometry specifications, and flat-field calibration data.

Use Cases

• Developing reconstruction algorithms for hyperspectral CT data based on the provided 4D sinogram and geometry files.
• Identifying and segmenting mineral phases like gold and galena based on their unique absorption edges mentioned in the description.
• Calibrating energy-sensitive detectors using the provided conversion between energy channels and keV values.
• Benchmarking flat-field normalization techniques using the included flat-field data acquired without a sample.

Strengths

• Includes a full 4D sinogram constructed following flat-field normalization of raw projection data.
• Contains specific calibration data for converting energy channels to keV values.
• Data acquisition details are provided, including the use of a HEXITEC detector and a tiled scanning procedure.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Henry Moseley X-ray Imaging Facility at The University of Manchester

Collection Method

Acquired in a laboratory micro-CT scanner with an energy-sensitive HEXITEC detector.