Re: Dose rates from certain regions only

That's right. Just one precision. There is tracking through the 'vacuumed' region,
but the gamma rays just go 'through' it, and therefore there will be no energy
deposition or attenuation, as you stated, because the region will be like
vacuum for the decay gammas.

On Sep 26, 2011, at 12:06 PM, Mina Nozar wrote:

> Dear Mario,
>
> Thank you. I see the behaviour you have described below after setting upfour sets of runs:
>
> 1) rTaConv "off", rdUCxTgt "off" Where "off" means setting the sixth entry of the ASSIGNMA to Vacuum.
> 2) rTaConv "off", rdUCxTgt "on"
> 3) rTaConv "on", rdUCxTgt "off"
> 4) rTaConv "on", rdUCxTgt "on"
>
> I looked at res. nuclei production rate as well as gamma dose rate in each of the two regions in each of the above=20
> scenarios.
>
> I see
>
> - That the nuclei inventory in the regions are the same regardless of thedecay material setting.
>
> - No gamma dose rates in either rTaConv or rdUCxTgt in case 1.
> - Some dose rate in rTaConv from activation in rdUCxTgt in case 2.
> - Some dose rate in rdUCxTgt due to activation in rTaConv in case 3.
>
> This means there is no tracking of decay gammas through vacuum regions; however, since usrtrack reports sum of the track=20
> lengths of the decay gammas going through a volume, there is one track to sum over since the gammas are not interacting=20
> in that volume/region (no eloss, attenuation, etc.). True?
>
>
> Best wishes,
> Mina
>
>
Received on Tue Sep 27 2011 - 09:50:28 CEST