Dear Riya,
could you please send your input file?
Thank you,
Andrea
Il 20/02/2018 10:17, riya dey ha scritto:
>
> Dear FLUKA Experts,
>
> I was trying to *score DOSE-Eq* inside a detector . The source is
> placed around the detector and the photons are coming inside the detector.
>
> The out puts of USRBIN ( combined with AUXscore ) are :
>
> When the detector radius is *10 cm* , Dose_eq value (using ERT-74) is
> scored as : *8.83E-4 pSv / primary*
>
> When the detector radius is *1 cm* , Dose_eq value (using ERT-74) is
> scored as : *8.605E-7 pSv/ primary*
>
> *In both cases, detector position is same, only radius is changing. *
>
> Now I *scored fluence using USRBDX* card. The outputs are : *total
> fluence*
>
> *For 10 cm* : *2.27E-7* particles per cm^2 per primary
>
> *For 1 cm* : *2.23E-7* particles per cm^2 per primary
>
> Now, Dose-eq is calculated from the fluence multiplied by fluence to
> dose conversion factor. *Since in both cases total fluence is same,
> why dose-eq values are different ??*
>
> *Note :* From the values of USRBIN, it looks like the values differ
> from each other by an order of 1E+3 which is actually the ratio of
> volumes of these two detector size .
>
> With regards,
>
> Riya Dey
>
--
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Dr. Andrea Fontana tel: +39 0382 987991
Istituto Nazionale fax: +39 0382 423241
di Fisica Nucleare
Sezione di Pavia e-mail: andrea.fontana_at_pv.infn.it
Via Bassi 6 web : www.pv.infn.it/~fontana
27100 PAVIA, Italy
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Received on Tue Feb 20 2018 - 14:38:30 CET