Re: USRYIELD estimators

Hi Adam,

have you tried to plot you spectrum on a log scale for abscissae?
Probably most neutrons are evaporation neutrons, with energies
1-2 MeV. On a linear scale, they are all squeezed in a narrow interval
about 1% of the whole scale

Alberto

On Fri, 9 May 2008, Buthaina Abdalla Suleiman Adam wrote:

> Dear FLUKA user,
>
> I am using USRYIELD estimator to score neutron fluence (double
> differential) produced from the interaction of 200 MeV (kinetic energy)
> proton beam with a thin target of Be-9 (1.2cm). The inputfile is attached.
> The result I obtained are not what I expected e.g the neutron spectrum
> (see attached file) shows a trend which is opposite of what is expected. I
> will be grateful for your input.
>
>
> Kind Regards,
> Buthaina Adam
>
>
>

-- 
Alberto Fasso`
SLAC-RP, MS 48, 2575 Sand Hill Road, Menlo Park CA 94025
Phone: (1 650) 926 4762   Fax: (1 650) 926 3569
fasso@slac.stanford.edu