Re: x-ray depth dose distribution

No, Sebastien, I made it work with just one bin in X and Y.
Rather, I think it was the negative value of the photon threshold that
made the card to be ignored.

About how to sample from a spectrum in the source routine, there is
a complete explanation in section 13.2.19 of the manual.

Alberto

On Tue, 16 Nov 2010, Sebastien_Wurth wrote:

> Hello again,
>
> I think there is something else, I checked and it seems that one must at
> least have more than one bin in X or Y in your USRBIN detector.
> With 2.0 bins in Y, and the proper transport thresholds, it works.
>
> Regards.
>
> S.
>
> ***********
> Hello Justin,
>
> I think you might look at this recent post of Anna Ferrari, especially
> the first part, EMFCUT part with SDUM=blank.
> (http://www.fluka.org/web_archive/earchive/new-fluka-discuss/3283.html)
> Then, you might use the user routine called source.f and activated with
> SOURCE card. Within this routine, you can define your spectrum with any
> logic that you wish.
>
> Hope it helps.
>
> Best regards.
>
> Sebastien.
>
> Le 15/11/2010 20:57, Cantley, Justin Lewis wrote :
>> Dear FLUKA users,
>>
>> I am trying to create a simple depth dose simulation with 100 keV
>> x-rays incident upon water. I am having a problem in that all of the
>> energy is deposited in the first millimeter of my water block (input
>> file attached). Does anyone have any suggestions as to what needs to
>> be fixed? Also, after I fix this problem, I want to use an x-ray
>> spectrum (which I've also attached if it helps) instead of just
>> setting the photons to 100 keV. Even after looking at the manual I'm
>> not sure how to do that, so any suggestions on that would be
>> appreciated as well. Thanks.
>>
>> - Justin
>
>
>
>
>

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