For those who have had the patience to follow the argument this far, here
is a paper that goes into further detail on the general idea:

https://drive.google.com/open?id=0BzKtdce19-wySFBVLXJET3k2TlU

There should be a "download" link at the top that will allow it to be
downloaded as a PDF.  I am particularly happy with the appendix.

Eric


On Fri, Dec 4, 2015 at 6:12 PM, Eric Walker <[email protected]> wrote:

> On Fri, Dec 4, 2015 at 3:07 PM, <[email protected]> wrote:
>
> I guess there are some exceptions. :)
>>
>
> For exothermic 4He + Pd reactions with 1-3 daughters which also occur in
> nature, I get a count of 269 reactions.  If one removes the limitation on
> unstable daughters, I get a count of 4556 reactions.
>
> 4He + 102Pd => 26Mg + 80Kr + 8602 keV
> 4He + 106Pd => 22Ne + 88Sr + 8464 keV
> 4He + 104Pd => 4He + 30Si + 74Ge + 8460 keV
>
> (Some of the reactions spit a 4He back out.)
>
> However try this for the reactions that Iwamura reported.
>>
>
> To get from cesium to praseodymium, we have:
>
> 4He + 133Cs => gamma + 137La + 1495 keV
> 4He + 137La => gamma + 141Pr + 1300 keV
>
> To get from strontium to molybdenum, we have:
>
> 4He + 88Sr => gamma + 92Zr + 2963 keV
> 4He + 92Zr => gamma + 96Mo + 2759 keV
>
> The case of barium to samarium does appear to be endothermic; e.g.,
>
> 4He + 137Ba => gamma + 141Ce + 139 keV
> 4He + 141Ce => gamma + 145Nd + -1579 keV
> 4He + 145Nd => gamma + 149Sm + -1872 keV
>
> Iwamura and the other authors had trouble confirming samarium when they
> started with 137Ba, although they thought it was probable.  It makes sense
> that this chain would have been attenuated due to the endothermic steps.
> But if the result was in fact real, it also suggests that the alphas are
> travelling with ~ 3-9 MeV of energy. :)
>
> The actual chains would have been more complex in the case of barium
> because some of the intermediate steps are unstable.  But a more complete
> analysis shows that several paths that diverge will eventually reconverge
> on samarium.
>
> Eric
>
>
>

Reply via email to