Re: [fluka-discuss]: Re: Dose profile due to GCR

From: Anna Ferrari <>
Date: Fri, 22 Apr 2016 10:03:46 +0200

Dear Roman,
it seems to me that you did not normalize correctly for the volume... you
used a cartesian USRBIN to do the 1D scan of a sphere, then without further
normalization you should expect effect on the borders.
Kind regards,

Am Fri, 22 Apr 2016 01:48:29 +0000 schrieb Roman Savinov
> Dear Vasilis,
> I increased the number of events from 1e4 to 2e5 and reran for 10 cycles
>instead of 3 as I did last time. I also had to reduce the radius of the
>sphere from 60 to 30 cm, otherwise it takes ridiculous time to run.
> The result is indeed more conclusive:
> [cid:aacc785e-f2a7-4b5a-8998-b04c3a6c7ca6]
> but I do not understand it. Why the profile is concave down?
> I want to see an attenuation profile where the dose DECREASE with depth.
> Is the sphere is too small or should I increase accuracy some more or,
>perhaps, this result is actually what I should expect?
> thank you,
> Roman

Anna Ferrari
HZDR - Institute of Radiation Physics

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Received on Fri Apr 22 2016 - 11:36:58 CEST

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