Search for non-Poissonian behavior in nuclear {beta} decay
- Dipartimento di Scienze Fisiche, Universita di Cagliari, via Ospedale 72, I-09124 Cagliari (Italy)
We performed two independent counting experiments on a {beta}-emitting source of {sub 62}{sup 151}Sm by measuring the {gamma} photon emitted in a fraction of the decays. For counting times ranging from 10{sup {minus}3} to 5.12{times}10{sup 4} s, our measurements show no evidence of deviations from Poissonian behavior and, in particular, no sign of 1/f noise. These measurements put strong limits on non-Poissonian components of the fluctuations for the subset of decays accompanied by {gamma}, and corresponding limits for the total number of {beta} decays. In particular, the magnitude of a hypothetical flicker floor is strongly bounded also for the {beta} decay. This result further constrains theories predicting anomalous fluctuations in nuclear decays. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 495870
- Journal Information:
- Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 55, Issue 3; Other Information: PBD: Mar 1997
- Country of Publication:
- United States
- Language:
- English
Similar Records
1/ f fluctuations in. beta. sup minus decay of sup 90 Y
STUDY OF RADIATIONS FROM HAFNIUM-172, NEODYMIUM-144, DYSPROSIUM-156, AND ERBIUM-162