Which type of radiation does XRF release during its operation?

X-ray fluorescence (XRF) operates using the principle of emitting X-rays to excite atoms in a sample, leading to the release of characteristic secondary X-rays. This process occurs when high-energy X-rays collide with the atoms in the material being analyzed. These secondary X-rays are specific to the elements present in the sample and are what the XRF instrument measures to identify and quantify the elemental composition.

The significance of X-rays in this context lies not only in their ability to excite the sample but also in their suitability for non-destructive testing. Because XRF utilizes X-rays, the method provides valuable information about lead content in paint, dust, and various substrates without altering or damaging the sample.

Understanding this point underscores the nature of XRF technology and clarifies its application in lead inspections, which is crucial for compliance with health and safety regulations regarding lead exposure.