Der Zerfall des⁸⁴Rb und die Fluoreszenzausbeute von Krypton

Abstract

The electron capture decay and the positron decay of⁸⁴Rb were investigated using NaJ (Tl)-detectors and a Ge (Li)-detector. Measurements of all intensities and of some informative double and triple coincidences were performed.

From coincidence measurements betweenK-X-radiation and the following γ-radiation we got theK-fluorescence yield of Krypton Ω_itK=0.653 ± 0.004. Taking in consideration former measurements¹ one concludes a continuous behaviour of Ω_itK(Z) forZ=36, 37 and 38 within an uncertainty of 1%.

For the branching ratios of the decay of⁸⁴Rb we obtained

The half-life of⁸⁴Rb was determined to beT _1/2=(34.5 ± 0.2) d.