Re: x-ray depth dose distribution

Dear Justin,
as far as I can see, you started the bining along z axis before the
coordinate along z axis of the source of x-rays:
BEAMPOS 0.0 0.0 -10.1
USRBIN 10.0 ENERGY -51.0 10.0 10.0 19.
Edeposit
USRBIN -10.0 -10.0 -11.0 1.0 1.0 300.0&
Also , it seems that Water target it is not enirely contained into binning.
Infact you choose water egion to be between -10cm and 10 cm along x, -10
and 10 along y and 0 to 30 along z while your scoring binning starts from
-11 and end to 19 cm along z axis.
Try to overlap the water region with you USRBIN binning along the Z axis.

> 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, s
> o any suggestions on that would be appreciated as well. Thanks.
>
> - Justin
>
Received on Tue Nov 16 2010 - 17:01:52 CET