Dear Paola and all,
Many thanks for your e-mail.
I need to consider the unrestricted collision stopping powers. Is there a way to print these values? From the subtraction, total unrestricted stopping power - nuclear unrestricted stopping power, I could calculate them, but the DELTARAY card is not printing the nuclear stopping powers. Why is this happening?
Also, I compared the total unrestricted stopping powers from ICRU49, with the ones that FLUKA uses and I got a good agreement below of 0.1% over the entire energy range for water. But for graphite, this is not the case, special for low energies. I'm using the same I-value and density that ICRU49 uses for graphite (I-value = 75eV, density = 1.7 g.cm-3).
(I can dig up the data if necessary).
Many thanks for your time.
Ana
________________________________________
De: Paola Sala <paola.sala_at_mi.infn.it>
Enviado: quarta-feira, 4 de Junho de 2014 06:40
Para: Ferreira De Almeida Lourenco, Ana
Cc: fluka-discuss_at_fluka.org
Assunto: Re: [fluka-discuss]: Output file: stopping powers
Dear Ana,
the second column is the total unrestricted stopping power, it includes
all processes and all energy transfers. The fourth column is the stopping
power restricted to those collisions where the produced electron has
energy smaller than the delta-ray threshold in the given material. Last
two columns refer to the nuclear stopping power only, that is important
for DPA calculations
Greetings
Paola
> Dear Fluka experts
>
>
> I'm using a DELTARAY card in order to print the stopping powers.
>
>
> Could you please clarify me which stopping power corresponds the one that
> is on the 2nd column?
>
>
> E_kin dE/dx eta shell corr. restr.dE/dx nuc.dE/dx
> res.nuc.dE/dx
> (GeV) (GeV/cm) (GeV/cm) (GeV/cm)
> (GeV/cm)
>
>
>
> Many thanks,
>
> Ana
>
Paola Sala
INFN Milano
tel. Milano +39-0250317374
tel. CERN +41-227679148
Received on Thu Jun 05 2014 - 13:14:47 CEST