Consequently, the overall implantation rate into this detector must be carefully controlled, without negatively affecting the typically low rate of the desired isotope. The correlation method employed to deduce half-lives and other properties of the beta decay required that the average time between implantations be larger than the half-life of the nuclide under study. The BCS relies on a highly-segmented Si detector to correlate implantations and subsequent beta decays on an event-by-event basis. The half-life of 84Mo has been re-measured using a concerted setup of the NSCL beta Counting System (BCS) and 16 detectors from the Segmented Germanium Array (SeGA). However, treatment of the background and the poor statistics accumulated during that study left questions about the statistical and systematic errors in the measurement. A previous experiment established the half-life of 84Mo to be 3.7+1.0-0.8 s. 84Mo is an important waiting point in the rp-process reaction sequence, determining mass abundance at and procession beyond A = 84 for stable isotopes on the proton-rich side of the valley of stability. 84Mo is an even-even N = Z nucleus lying on the proton drip line that is thought to be created during explosive hydrogen burning in Type I X-ray bursts in the astrophysical rapid proton capture (rp) process.
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