Re: [fluka-discuss]: differences in activation calculations

From: Vittorio Boccone <dr.vittorio.boccone_at_ieee.org>
Date: Tue, 22 Sep 2015 23:28:56 +0200

Dear Hans, I'm not sure you are evaluating the same quantity (apart from
the prompt products you loose scoring after 1s of irradiation , which
shouldn't be much)

What I see naively is that your comscw.f is always returning "ONEONE",
maybe you want to return something else if it's not a Sodium isotope?

Best,
V

On Tue, Sep 22, 2015 at 5:43 PM, Hans Beijers <beijers_at_kvi.nl> wrote:

> Dear Fluka experts,
>
> When I calculate the production of a specific Na-24 in a piece of
> aluminum that is hit by an electron beam in two different ways, i.e.
> using the RESNUCLE or USRBIN (and RADDECAY,DCYTIMES,IRRPROFI,DCYSCORE
> with comscw.f to get the right isotope), I get two very different
> results: (4.70p/m0.29)xe-8 nuclei/cm3 with RESNUCLE and
> (4.355p/m0.067)xe-2 nuclei/cm3 with USRBIN. The USRBIN result has been
> divided by the decay constant to get number of nuclei per cm3. The input
> file and comscw.f routine are attached. Obviously I am doing something
> wrong, but I cannot find the mistake. Any suggestions are highly
> appreciated.
>
> Yours truly,
>
> Hans Beijers
>


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Received on Wed Sep 23 2015 - 00:47:51 CEST

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