Dear Xu Lijun,
you have to activate radioactive decay in semi-analogue mode (via
RADDECAY with WHAT(1)=2.0) and include the decay contribution in your
USRBIN scoring (via DCYSCORE with WHAT(1)=-1.0). A BEAM energy different
from zero makes no sense in this case
Best wishes
Francesco
**************************************************
Francesco Cerutti
CERN-EN/STI
CH-1211 Geneva 23
Switzerland
tel. ++41 22 7678962
fax ++41 22 7668854
On Wed, 24 Aug 2011, Xu Lijun wrote:
> Dear Fluka experts: I want to describe a Co-60 gamma source (isotropic) using BEAM card.
> Is it right in this way:
>
> *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+...
> BEAM 0.0 10000.0
> 1.0ISOTOPE
> HI-PROPE 27. 60.
>
> I can't score any gamma energy in my simulated detector (USRBIN). But if Beam card was
> substituted with a card in energy like this
>
> *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+...
> BEAM 1252.8E-6 10000.0
> 1.0ISOTOPE
>
>
> Thank you in advance!
>
>
>
>
>
Received on Wed Aug 24 2011 - 17:49:34 CEST
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