Dear Arghya,
To sample from an energy spectrum, you can refer to the same slides of my previous email: there is an example from page 36 and following.
About the position/direction cosines, you can adapt the following pseudocode (assuming that the cylinder axis is along the z-axis), to be inserted in the source.f.
* Cosines (tx,ty,tz)
TXFLK (NPFLKA) = TXX
TYFLK (NPFLKA) = TYY
TZFLK (NPFLKA) = TZZ
* Particle coordinates
R = SQRT(FLRNDM(DUMMY)) * (RMAX-RMIN) + RMIN
theta = FLRNDM(DUMMY) * TWOPIP
XFLK (NPFLKA) = R * cos( theta )
YFLK (NPFLKA) = R * sin( theta )
ZFLK (NPFLKA) = ZMIN + (ZMAX - ZMIN) * FLRNDM(DUMMY)
In the same slides, some useful auxiliary routines are documented at page 31 and following.
Hope this could help.
Best regards, luigi
On 22.05.17, 13:40, "arghyac_at_barc.gov.in" <arghyac_at_barc.gov.in> wrote:
Thank you very much for your quick response.
But in my case I cannot use Beampos card as I have to feed energy
spectrum also. So I need to sample both annular cylindrical source
geometry and energy spectrum using source.f subroutine only.
Please suggest me how to sample both using source.f subroutine.
Thanking you in advance.
On 2017-05-22 15:37, Luigi Salvatore Esposito wrote:
> Dear Arghya,
> You can use BEAMPOS card with SDUM = CYLI-VOL.
> More details in the manual and in the example given in these slides
> (from page 8 to 11)
> https://indico.cern.ch/event/489973/contributions/2148893/attachments/1271819/1884943/11_AdvancedSources2016.pdf
> Best regards, luigi
>
> On 22.05.17, 07:44, "owner-fluka-discuss_at_mi.infn.it on behalf of
> arghyac_at_barc.gov.in" <owner-fluka-discuss_at_mi.infn.it on behalf of
> arghyac_at_barc.gov.in> wrote:
>
> Dear experts,
>
> I need to design one annular cylindrical source (Rmin = 2 cm
> and
> Rmax = 5 cm) in which source material will be within Rmin and Rmax
> i.e
> annular region. Source.f card will be for Ir-192 spectrum.
>
> How to sample this kind of Cylindrical source in source.f card.
> Please give me some suggestions on this.
>
> Thank you in advance.
>
> With regards,
> Arghya Chattaraj
>
>
> __________________________________________________________________________
> You can manage unsubscription from this mailing list at
> https://www.fluka.org/fluka.php?id=acc_info
>
>
>
> ��������������������������������������������������������(�Ƨ��ځ맲��r���*'~�&�?�����x%��Z�?m����?0��n���?ߖ�?��i�'i���w�
(Ƨځ맲r*'~&x%Zm 0nߖi'iw
Received on Mon May 22 2017 - 22:27:23 CEST