The X-Checker was the first and remains the only complete calibration aid for SEM/EDS Systems. In addition to the standard features and boron nitride, there is a fluorine source to test resolution at the fluorine K-alpha peak
The X-Checker was the first and remains the only complete calibration aid for SEM/EDS Systems. With boron nitride for those who need a more sensitive monitor of low end performance on thin window and windowless detectors.