Windowless Detector Windowless detectors provide more counts at all energies with unrivalled low energy performance. Collection efficiency is significantly improved compared to detectors of a similar solid angle that need to use a thin window. Sensitivity to N Ka is increased almost 3x Sensitivity to O Ka is doubled Be Ka and Si La peaks are easily detected Higher energy sensitivity increased by 40-45%No compromise in peak-to-background ratio or resolution Specially optimized AZtec TEM Tru-Q® analysis algorithm delivers accurate AutoID and quantitative analysis at all energies