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Question Internal Pair Production 

Forum: Physics List
Date: 26 Feb, 2018
From: Cameron Pain <Cameron Pain>

I'm simulating radioactive decay of $^{90}Y$ particles.

I've found the atomic relaxation flags which need to be set for Auger electrons and K-L shell relaxation however I cannot find a similar flag for the internal pair production from the 1.74 MeV excited state $^{90}Zr$ daughter nuclei.

Experimentally there should be a 32 ppm branching ratio for this decay path.

I've consulted Geant4 Physics Reference Manual 10.4 but haven't found anything describing this process.

Is there a similar flag or is this decay pathway not taken into account?

Regards, Cameron Pain.

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1 Idea: Re: Internal Pair Production   (Vladimir Ivanchenko - 11 Mar, 2018)
(_ None: Re: Internal Pair Production   (Cameron Pain - 13 Mar, 2018)
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