Energy-Dispersive XRF (ED-XRF)
Definition
An XRF configuration in which characteristic X-rays from all excited elements are detected simultaneously by a silicon drift detector. Used in handheld instruments (Olympus Vanta, Bruker S1 Titan) for rapid non-destructive elemental profiling of blast debris.
- Detector type
- Solid-state
- Advantage
- Fast, compact, portable
- Trade-off
- Lower resolution than WD-XRF
Common questions
Why is ED-XRF favoured for field or portable forensic use?+
Its compact solid-state detector collects all emitted energies at once, which allows handheld instruments that can screen evidence such as glass, gunshot residue, or questioned metals directly at the scene.
What is the main trade-off against WD-XRF?+
ED-XRF trades some peak resolution and sensitivity to trace or overlapping elements for speed and portability, so WD-XRF remains preferred in a laboratory setting when maximum elemental resolution is needed.
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Explained in these topics
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