2] (12) and this has also been adopted in some commercial EDXS systems.
Most EDXS systems are fitted with pile up inspectors that are fast and effective for high energy photons.
Stored experimental profiles effectively characterise the energy response of a particular detector but suitable standards are not always available for every element and profiles also have to be obtained for all the EDXS configurations that are to be used.
A much more common and serious problem for EDXS is the case of overlapping peaks.
For EDXS systems without an automatic zero measurement, calibration requires a spectrum with two well defined x-ray peaks of similar area, usually AlK[alpha] and CuK[alpha] at 1.
Complete EDXS analysis systems are designed for ease of use and it is often difficult to get access to individual components to make specific tests.