http://friam.383.s1.nabble.com/thanks-to-Hywel-White-for-this-surprising-news-001-variations-in-32Si-and-36Cl-beta-decay-on-Earth-f3-tp5497794p5498053.html
years ago, but nothing seemed to have come of it. Of course the
> thanks to Hywel White for this surprising news: .001 variations in
> Si-32 and Cl-36 beta decay on Earth from solar neutrinos: Rich
> Murray 2010.09.03
>
>
> "So, what we're suggesting is that something that can't interact
> with anything is changing something that can't be changed."
>
>
http://www.physorg.com/news202456660.html>
> Radioactive decay rates vary with the sun's rotation: research
> August 31, 2010 by Elizabeth K. Gardner
>
> Radioactive decay rates, thought to be unique physical constants and
> counted on in such fields as medicine and anthropology, may be more
> variable than once thought.
>
> A team of scientists from Purdue and Stanford universities has found
> that the decay of radioactive isotopes fluctuates in synch with the
> rotation of the sun's core
> .
> The fluctuations appear to be very small but could lead to
> predictive tools forsolar flares and may have an impact on medical
> radiation treatments.
>
> This adds to evidence of swings in decay rates in response to solar
> activity and the distance between the Earth and the sun that Purdue
> researchers Ephraim Fischbach, a professor of physics, and Jere
> Jenkins, a nuclear engineer, have been gathering for the last four
> years.
> The Purdue team previously reported observing a drop in the rate of
> decay that began a day and half before and peaked during the
> December 2006 solar flare and an annual fluctuation that appeared to
> be based on the Earth's orbit of, and changing distance from, the
> sun, Jenkins said.
>
> "If the relationship between solar activity and decay rates proves
> to be true, it could lead to a method of predicting solar flares,
> which could help prevent damage to satellites and electric grids, as
> well as save the lives of astronauts in space," Jenkins said.
> "Finding that the decay rates fluctuate in a pattern that matches
> known and theoretical solar frequencies is compelling evidence for a
> solar influence on decay rates."
>
> Jenkins and Fischbach collaborated with Peter Sturrock, a professor
> emeritus of applied physics at Stanford University and an expert on
> the inner workings of the sun, to examine data collected at
> Brookhaven National Laboratory on the rate of decay of the
> radioactive isotopes silicon-32 and chlorine-36.
>
> The team reported in the journal Astroparticle Physics that the
> decay rate for both isotopes varies in a 33-day recurring pattern,
> which they attribute to the rotation rate of the sun's core.
>
> In general, the fluctuations that Jenkins and Fischbach have found
> are around a tenth of a percent from what is expected, as they've
> examined available published data and taken some measurements
> themselves.
>
> The team has not yet examined isotopes used in medical radiation
> treatments or for dating of ancient artifacts.
>
> "The fluctuations we're seeing are fractions of a percent and are
> not likely to radically alter any major anthropological findings,"
> Fischbach said.
> "One of our next steps is to look into the isotopes used medically
> to see if there are any variations that would lead to overdosing or
> underdosing in radiation treatments, but there is no cause for alarm
> at this point.
> What is key here is that what was thought to be a constant actually
> varies and we've discovered a periodic oscillation where there
> shouldn't be one."
>
> Jenkins and Fischbach suggest that the changes in the decay rates
> are due to interactions with solar neutrinos, nearly weightless
> particles created by nuclear reactions within the sun's core that
> travel almost at the speed of light.
>
> It is estimated that about 60 billion solar neutrinos pass through a
> person's fingernail every second, but they are so weakly reactive
> that they pass right through the body without disturbing or changing
> anything, Jenkins said.
>
> "We haven't known the solar neutrino to interact significantly with
> anything, but it fits with the evidence we've gathered as the likely
> source of these fluctuations," he said.
> "So, what we're suggesting is that something that can't interact
> with anything is changing something that can't be changed."
>
> The Purdue team has ruled out the possibility of experimental error
> or an environmental influence on the detection systems that track
> the rate of decay as being responsible for the fluctuations and
> published a series of papers in the journals Astroparticle Physics,
> Nuclear Instruments and Methods in Physics Research, and Space
> Science Reviews.
>
> Sturrock said it is an effect that no one yet understands and that
> if it is not neutrinos that are responsible, then perhaps there is
> an unknown particle interacting with the atoms.
> "It would have to be something we don't know about -- an unknown
> particle that is also emitted by the sun and has this effect -- and
> that would be even more remarkable," he said.
>
> More information:
> Power spectrum analyses of nuclear decay rates,
> M.A. Silver et al.,
> Astroparticle Physics, Volume 34, Issue 3, October 2010, Pages 173-178.
> doi:10.1016/j.astropartphys.2010.06.011
>
> Provided by Purdue University (news : web)
>
>
> Astroparticle Physics
> Volume 34, Issue 3, October 2010, Pages 173-178
> doi:10.1016/j.astropartphys.2010.06.011
> Copyright © 2010 Published by Elsevier B.V.
>
> Power spectrum analyses of nuclear decay rates , f and B. Terryg, i
> a 411th Flight Test Squadron, 412th Test Wing, Edwards AFB, CA 93524, USA
> b Center for Space Science Astrophysics, Stanford University,
> Stanford, CA 94305, USA
> c St. John's College, Cambridge CB2 1TP, UK
> d Astrophysics Group, Cavendish Laboratory, Cambridge CB3 0HE, UK
> e Department of Physics, Purdue University, West Lafayette, IN 47907, USA
> f Detachment 220, Air Force Reserve Officer Training Corps, West
> Lafayette, IN 47907, USA
> g 47th Operations Support Squadron, 47th Flying Training Wing,
> Laughlin AFB, TX 78843, USA
> h School of Nuclear Engineering, Purdue University, West Lafayette,
> IN 47907, USA
> i Department of Physics, United States Air Force Academy, CO 80920, USA
> j Training Squadron 3, Training Air Wing 5, NAS Whiting Field,
> Milton, FL 32570, USA
> k 392nd Training Squadron, 30th Space Wing, Vandenberg AFB, CA 93437, USA
> Received 22 December 2009; revised 10 June 2010; accepted 30 June
> 2010. Available online 6 July 2010.
>
> Abstract
>
> We provide the results from a spectral analysis of nuclear decay
> data displaying annually varying periodic fluctuations.
> The analyzed data were obtained from three distinct data sets:
> 32Si and 36Cl decays reported by an experiment performed at the
> Brookhaven National Laboratory (BNL),
> 56Mn decay reported by the Children's Nutrition Research Center
> (CNRC), but also performed at BNL,
> and 226Ra decay reported by an experiment performed at the
> Physikalisch-Technische Bundesanstalt (PTB) in Germany.
>
> All three data sets exhibit the same primary frequency mode
> consisting of an annual period.
>
> Additional spectral comparisons of the data to local ambient
> temperature, atmospheric pressure, relative humidity, Earth-Sun
> distance, and their reciprocals were performed.
> No common phases were found between the factors investigated and
> those exhibited by the nuclear decay data.
> This suggests that either a combination of factors was responsible,
> or that, if it was a single factor, its effects on the decay rate
> experiments are not a direct synchronous modulation.
> We conclude that the annual periodicity in these data sets is a real
> effect, but that further study involving additional carefully
> controlled experiments will be needed to establish its origin.
> Keywords: Spectral analysis; Radioactive decay; Nuclear decay
>
>
>
http://blogs.discovermagazine.com/80beats/2010/08/26/scientist-smackdown-are-solar-neutrinos-messing-with-matter/>
> blog debate 2010.08.26
> Blogs / 80beats
> Scientist Smackdown: Are Solar Neutrinos Messing With Matter?
>
> "The big one, though, is number three: are we really seeing some
> kind of physics never seen before?
> Fischbach and Jenkins don't back off:
> "We agree that, according to current theory of the standard weak
> interaction, neutrinos should not be influencing decay rates.
> We also agree that Super-Kamiokande data are not anomalous.
> Our position is that either neutrinos have properties we do not yet
> understand, or some other particle or field behaving like neutrinos
> is influencing decay rates.
> In slightly more detail, we are not considering neutrino capture as
> in the case of Super-K.
> Rather we work in a picture where neutrinos pass through the sample
> of decaying nuclei, as they pass through everything else, and
> exchange an energy on the order of 10-100 eV.
> Given the sensitivity of beta decays and electron capture to the
> energy available, the exchange of a small amount of energy in this
> way could be sufficient to explain the observed effects."
>
>
>
http://ie.lbl.gov/toi/nuclide.asp?iZA=140032> 32Si 150 years beta 224.5 Kev
> 36Cl 3.01x10E5 years beta, or positron with neutrino
> _______________________________________________
>
>
> Rich Murray, MA
> Boston University Graduate School 1967 psychology,
> BS MIT 1964, history and physics,
> 1943 Otowi Road, Santa Fe, New Mexico 87505
> 505-501-2298
[hidden email]
> Sondra Spies, DOM
>
>
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>
>
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>
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> _______________________________________________
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