Do radioactive half-lives vary with the Earth-to-Sun distance? Conference Paper

abstract

• Recently, Jenkins, Fischbach and collaborators have claimed evidence that radionuclide half-lives vary systematically over a 0.1% range as a function of the oscillating distance between the Earth and the Sun, based on multi-year activity measurements. We have avoided the time-dependent instabilities to which such measurements are susceptible by directly measuring the half-life of (198)Au (t(1/2)=2.695 d) on seven occasions spread out in time to cover the complete range of Earth-Sun distances. We observe no systematic oscillations in half-life and can set an upper limit on their amplitude of 0.02%.

authors

• Hardy, John

published proceedings

• Appl Radiat Isot

author list (cited authors)

• Hardy, J. C., Goodwin, J. R., & Iacob, V. E.

citation count

• 25

complete list of authors

• Hardy, JC||Goodwin, JR||Iacob, VE

publication date

• September 2012

publisher

• Elsevier  Publisher

published in

• APPLIED RADIATION AND ISOTOPES  Journal

keywords

• Earth, Planet
• Gold Radioisotopes
• Half-Life
• Internationality
• Radiation Dosage
• Radiometry
• Reference Standards
• Reference Values
• Solar System

PubMed Central ID

• 22398326

Digital Object Identifier (DOI)

• 10.1016/j.apradiso.2012.02.021

start page

• 1931

end page

• 1933

volume

• 70

issue

• 9

URL

• http://dx.doi.org/10.1016/j.apradiso.2012.02.021