Visualization of heated latent fingerprints by synchrotron radiation soft X-ray photoemission electron microscopy

Key Points

• The research aims to investigate how synchrotron radiation soft X-ray photoemission electron microscopy can visualize heated latent fingerprints.
• Utilized synchrotron radiation soft X-ray photoemission electron microscopy to analyze fingerprints.
• Focused on detecting sodium elements present in heated fingerprints.
• Compared the effectiveness of this method against traditional observation techniques.
• Successfully revealed distinct ridge patterns in heated fingerprints.
• Demonstrated that sodium detection allows visualization that traditional methods cannot achieve.