Re: [fluka-discuss]: Zero energy deposition is obtained inside the target sphere

From: <ashishsingh_at_barctara.gov.in>
Date: Tue, 24 Nov 2020 15:57:09 +0530

> Dear Ashish Kumar Singh,
> I see nothing particularly wrong in your input. I cannot fully check your
> problem because the fluence file you sent contains only 99 lines.
> Probably you are just missing the tiny air volume, in which the
> interaction probabilityy for photons is small.
> I would suggest to score DOSE-EQ over the whole interior of your house
> structure, for instance with a cartesian binning having 10cm wide in in
> all directions.
> This has the advantage of calculating dose on the basis of particle
> fluence, instead of deoposited energy, which is much more efficient when
> dealing with very low densities.
> This will also give you an idea of the distribution of particle fluence
> inside the "house"
> You can also add flence usrbins, scoring pphotons otr ALL-PART, covering
> your whole haose, to check that the particles are travelling where you
> expect to travel.
> Regards
> Paola
>> Dear Fluka experts,
>>
>> I'm trying to estimate dose reduction from house structure made by two
>> RPPs in fluka using fluence.txt file generated in earlier steps of
>> simulation. The medium of walls is taken as air for dose calculation
>> without house structure. But energy deposition is obtained as zero
>> inside
>> the target sphere. I have attached input file file. Kindly suggest the
>> needful corrections in it.
>>
>> --
>> Thanks & Regards
>> Ashish Kumar Singh
>
>
> Paola Sala
> INFN Milano
> tel. Milano +39-0250317374
> tel. CERN +41-227679148
>

Dear Paola Sala,

I have changed dimension of target sphere from 5 cm to 10cm, 15 cm, 20 cm
& so but still getting zero energy deposition. Here I have attached
fluence zip file. Kindly check once if you are facing same issue after
changing dimension of target sphere. If yes, please suggest what would be
the best alternative possible in this case.

-- 
Thanks & Regards
Ashish Kumar Singh




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Received on Tue Nov 24 2020 - 16:22:04 CET

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