Loading…
Non-dependence of nuclear decay rates of 123 I and 99m Tc on Earth-Sun distance
Recently published studies have suggested an annual fluctuation of the decay rate of several radionuclides, in particular Si and Ra. Variation of solar neutrino flux caused by variation of Earth-Sun distance has been proposed as the mechanism of this fluctuation. In this study we prospectively look...
Saved in:
Published in: | Applied radiation and isotopes 2018-02, Vol.132, p.189-194 |
---|---|
Main Authors: | , , |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Recently published studies have suggested an annual fluctuation of the decay rate of several radionuclides, in particular
Si and
Ra. Variation of solar neutrino flux caused by variation of Earth-Sun distance has been proposed as the mechanism of this fluctuation. In this study we prospectively look at two radionuclides which have not previously been studied for annual variation,
I and
Tc. Half-lives of samples of these radionuclides were measured approximately weekly and semiweekly respectively over a period of 2 years. Spectral analysis using the Lomb-Scargle method demonstrated no significant periodicity, and in particular, no evidence for a period of 1 year. |
---|---|
ISSN: | 0969-8043 1872-9800 |
DOI: | 10.1016/j.apradiso.2017.12.006 |