Meaning
Analytical techniques used in conjunction with electron microscopy identify the elemental composition of a sample by measuring the x-rays emitted during bombardment. Utilization of energy-dispersive x-ray spectroscopy allows quality control labs to verify that a component is made from the specified alloys and materials. This method provides a chemical map of the surface and can detect contaminants that are invisible to the eye.
The process is a standard part of the authentication protocol for high-reliability electronics.
Elemental Detection
Sensors capture the energy spectrum of the x-rays to create a signature for each element present. This data confirms the presence of metals like gold, copper or lead in the expected proportions.
Verification Process
Technicians compare the results of energy-dispersive x-ray spectroscopy against a known authentic sample or a manufacturer datasheet. If the chemical signature does not match the specification, the part is flagged as a potential counterfeit. This analysis is particularly useful for detecting lead-free finishes that have been fraudulently labeled as containing lead.
The testing is non-destructive for the bulk of the material, though it requires a vacuum environment for the most accurate readings. Results are typically delivered as a percentage of the total mass for each detected element.
Component Safety
Reliability in the field depends on the use of correct materials. energy-dispersive x-ray spectroscopy helps prevent the failure of critical systems by catching material substitutions early.
