Volume 81, Number 4, February 2008
|Number of page(s)||6|
|Published online||11 January 2008|
Observation of the acceleration by an electromagnetic field of nuclear beta decay
American University - Washington, DC 20016-8058, USA and Max Born Institute - 12489 Berlin, Germany
Accepted: 7 December 2007
Measurements are reported of the acceleration of the first-forbidden beta decay of 137Cs by exposure to intense, low-frequency electromagnetic fields. Two separate experiments were done: one in a coaxial cavity, and the other in a coaxial transmission line. The first showed an increase in the beta decay rate of (6.8±3.2)10-4 relative to the natural rate, and the other resulted in an increase of (6.5±2.0)10-4. In addition, a Fourier analysis of the rate of 662 keV gamma emission following from the beta decay in the standing-wave experiment showed a clear indication of the frequency with which the external field was switched on and off. A simultaneously detected gamma emission from a placebo nucleus showed no such peak.
PACS: 23.40.-s – β decay; double β decay; electron and muon capture / 23.90.+w – Other topics in radioactive decay and in-beam spectroscopy / 28.90.+i – Other topics in nuclear engineering and nuclear power studies
© EPLA, 2008
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