Abstract
AbstractThe exponential equation R0 = R · eR0τdescribes the counting losses in wavelength‐dispersive x‐ray spectroscopic (WDF) detectors up to very high counting rates. The correction error can be considerably lower than 1% for a true counting rate of 7 · 105s−1. The dead time constant τ has however to be determined very accurately for this. Methods of determining τ with the desired accuracy are also described. And finally, a formula for correcting for dead time losses for two detectors in series, where each detector has a different dead time, is deduced and verified by experiment. Here again, one can calculate the true counting rate with an accuracy of 1% at a true counting rate of about 7 · 105 s−1.
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