Hello
did you try with the DOSE-EQ evaluation and with the large fluence
cartesian binning?
Please do it first.
As a general rule, it is often worthwhile to look at particle fluences
over the simulated geometry, in order to understand if there are evident
issues.
Paola
>> 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
>
Paola Sala
INFN Milano
tel. Milano +39-0250317374
tel. CERN +41-227679148
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Received on Tue Nov 24 2020 - 18:50:25 CET