Dear Sougata Sir,
1. For Fluka lowest possible Cut-off is 1 keV for electron and photon.
So, please make photon Cut-off as 1 keV instead of 100 eV.
2. Make material selection as Vacuum to _at_LASTMAT, (not BLACKHOLE)
3. MAke region selection as VOID to _at_LASTREG, (not BLACKHOLE)
4. ONLY SET TRANSPORT CUT-OFF.
Thank you.
On 2019-01-07 11:27, Sougata wrote:
> Dear FLUKA experts,
>
> In one of my problem my sorce is beta spectrum from Sr90-Y90 source
> via a source card. I want to score energy deposition in a ion chamber
> volume. I am using EMFCUT card with transport cutoff and production
> cutoff at 1 kev for e- and 100 eV for photon.
> There is diffence of around 2 % in data in following two case
>
> CASE 1:
>
> I am defining region from BLACKBODY to _at_LASTREG
> and BLACKHOLE to _at_LASTMAT
>
> CASE 2:
>
> I am defining region from VOID to STANDI (STANDI is a region for my
> problem)
> and BLACKHOLE to AIR
>
>
> Please that percentage error for all cases is < 0.5%. Please elaborate
> and also tell which one is correct way to define region and material
> in EMFCUT card
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Received on Mon Jan 07 2019 - 09:47:40 CET