Phys. Rev. A 44, 1044–1048 (1991)1/f fluctuations in β- decay of 90YReceived 29 November 1990; published in the issue dated July 1991 The decay statistics of 90Y have been studied from the count data collected during the radioactive β- decay from a carrier-free isotope of 90-90Y. The values of the relative Allan variance exceeded those predicted for a simple Poissonian process for counting times longer than 10 min and reached a limiting value called the flicker floor attributed to 1/f fluctuations. This study was extended for various energies of the 90Y spectrum. © 1991 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.44.1044
DOI:
10.1103/PhysRevA.44.1044
PACS:
05.40.+j
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