Photon burst mass spectrometry: ultrasensitive detection of rare isotopes

摘要

Abstract: Progress is reported on the development of a new technique for measurement of trace levels of radioisotopes which is based on fluorescence detection of output from a mass spectrometer. Significant achievements include the observation of fluorescence and burst signals from Kr isotopes, including enriched samples of $+85$/Kr with a 4- collector system. An isotopic abundance sensitivity of about 10$+$MIN@8$/ is demonstrates with $+83$/Kr and $+85$/Kr.!9