Mass Absorption Corrections - Hitachi LAB-X5000 User Manual

LAB-X5000 Series User Guide
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6.4. Mass Absorption Corrections

6.4.1. This correction should be applied when the intensity of radiation coming from a
sample for one element has been modified by the presence of another element in the
sample.
6.4.2. Example: when an element has been fluoresced by incident radiation from the X-ray
tube, the element emits secondary or characteristic X-rays. Each element requires a
certain minimum energy to excite it, and this is called the absorption edge
6.4.2.1. Ca value = 4.04keV. If a primary X-ray has an energy of 4keV then the calcium will
not be excited because the incoming radiation is not energetic enough, but at energies
greater than 4.04keV, the Ca will be excited.