Hi Eric,

I made a quick calculation and believe that your balance adds up.  The net 
process is equal to the production of a He4 atom from two deuterons.  Each 
deuteron releases 2.224 MeV to build from parts while a He4 atom releases 
28.2933 MeV if constructed from basic parts.  So if  you start with the two 
deuterons and end with He4 you get 28.2933 - 2 * 2.224 = 23.8453 MeV.  The 
total released by your two reactions is 23.8 MeV.  The numbers appear to 
correlate.


Dave



-----Original Message-----
From: Eric Walker <[email protected]>
To: vortex-l <[email protected]>
Sent: Wed, Sep 19, 2012 11:54 pm
Subject: [Vo]:graphs of reaction and decay networks


I've put together some graphs of exothermic proton and deuteron capture 
reaction networks for several materials together with associated decay chains.  
See:


https://docs.google.com/open?id=0BzKtdce19-wySThpSnd3bUxJdDQ


A PDF can be obtained by choosing "Download" from the "File" menu at the left.  
If you see any details in error, let me know.  There is a fascinating pair of 
reactions that I haven't completely made sense of yet:



  15N + D -> 13C + A + 7.7 MeV
  13C + D -> 15N + γ + 16.1 MeV



At face value, it is a catalytic reaction that takes deuterium and yields 
helium-4.  But I'm not able to make sense of the energy balance.  it appears to 
be saying that if you take 15N and add deuterium, you'll get 13C and some 
energy, and if you take 13C and add deuterium, you'll get 15N and some energy.  
I've probably messed up the calculation; if not, there's some magic going on 
there.


Eric


 

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