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Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Seems that the effect is well known at NASA, they don't know why Pu239 decays more slowly at a distance from the Sun but they are aware of it. The effect seen is less than 1 part in 10000 so only affects RTG generators very slightly.
I theorised a while back that the effect *might* be due to resonant interactions within the nucleus so that as T increases, the nucleus has a non zero probability of decay at certain times. If so then a neutrino passing through the nucleus at just the right points in time could add energy to the system allowing it to beta decay before current theory says it should.
This effect could also directly affect biologically important isotopes such as K-40, if so then the Cambrian Explosion could very well have been set off by a neutrino flux change induced by solar activity, a nearby supernova or other astronomical phenomena affecting K-40 and increasing natural mutations.
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Interesting. Wonder how I might test it? Ideas would be appreciated. Perhaps use an isotope that is known to be affected and see if despite 1" of lead around say a sample of U-238 or Th-232 it is affected over a long period of time?
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Following up on radioactive decay and solar neutrinos
