| Zugriffsnummer | 35642 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Do radioactive decay rates depend on the distance between the earth and the sun? |
| Autor(in); Institution |
Kossert, Karsten; 6.1, Radioaktivität, PTB-Braunschweig
Nähle, Ole Jens; 6.1, Radioaktivität, PTB-Braunschweig
|
| Quelle/Jahr | Proceedings of the 10th PATRAS Workshop of Axions WIMPs and WISPs 2014:(2014), 181 - 184 |
| ISBN | 978-3-935702-90-4 |
| DOI | |
| Verlag | Hamburg: Deutsches Elektronen Synchrotron |
| Konferenzangaben | 10th Patras Workshop on Axions, WIMPs and WISPs (PATRAS 2014), Genf, 29, June - 04, July, 2014, Switzerland |
| Zusammenfassung | The potential influence of solar neutrinos on beta decay rates was investigated at PTB. To this end, new experiments habe been carried out for the beta emitters 36Cl and 90Sr/90Y, respectively. The measurements were performed using custom-built liquid scintillation counters with three photomultiplier tubes (PMTs). the data were analyzed applying the TDCR method which yields information on the counting efficiency and the activity. The activities corrected for decay were found to be stable and no iscillation could be observed. Also frequency analyses do not show any significant periodicity. Thus, we disprove the findings from several previous works of a research group working with Fischbach, Jenkins, Sturrock et. al. who used data from relatvie measurements methods only. The data they use are not suitable to claim evidence for variations of decay rates, since the measurement techniques do not provide information on the instrument efficiency. that group also used data from our laboratory which were obtained by means of ionization chambers. We can show that the observed effects cannot be explained with an influence of solar neutrinos, whereas an influence of climate data in the corresponding measurement room appears to be a more plausible reason. |
Zitierung
Kossert, K. & Nähle, O. J. (2014). Do radioactive decay rates depend on the distance between the earth and the sun? 10th Patras Workshop on Axions, WIMPs and WISPs (PATRAS 2014), Genf, 29, June - 04, July, 2014, Switzerland. https://doi.org/10.3204/desy-proc-2014-03/kossert_karsten