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Forum: Documentation and Examples
Re: Question Standard electromagnetic model (giorgio)
Date: 12 Oct, 2003
From: Vladimir Ivanchenko <Vladimir Ivanchenko>

On Sat, 11 Oct 2003, giorgio wrote:

> *** Discussion title: Documentation and Examples
> Email replies to PublicHyperNews@slac.stanford.edu must include:
>   In-Reply-To: <"/docsexamples/67"@geant4-hn.slac.stanford.edu>
>   Subject: ...change this to be about your reply.
> 
> hi, I read that the low energy models extend the coverage of
> electromagnetic interactions of photons and electrons down to 250 eV,
> and of protons, ions and antiprotons down to <1 keV. What is the range
> of validity of standard electromagnetic model?
> 
> Thanks in advance
> 
> Giorgio
> 

In the standard EM package the initial and secondary energies assumed to
be above 1 keV. Below 1 keV simple approximations are used, by default no
secondaries are generated with energy above 1 keV.

VI   

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