Re: [fluka-discuss]: Air Activation - error values

From: Paola Sala <paola.sala_at_mi.infn.it>
Date: Mon, 3 Aug 2020 16:35:52 +0200

Hello
errors are statistical only. They are calculated on the basis of the
fluctuations among different cycles of a run. If the production yield of a
given isotope is small, only a few of them will be produced, with large
fluctuations among cycles. Just like in a real experiment. If the error is
99%, it usually means that the isotope was produced only in one of the
cycles.
Hope this helps
> Hello!
>
> I'm simulating activation of air in a simple geometry.
>>From the sum.lis file I take the activities and errors of the activation
>> products.
>
> I'm curious about the broad range of different error values. For some of
> the activation products the relative error is rather small or even tiny,
> while for others it is very big, for a few even up to 99%.
>
> Can you give me reasons for such differences? For instance I wonder,
> whether the different cross sections are considered.
>
>
> Kind regards and thanks for your help,
> Michael Bauer
>
>
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Paola Sala
INFN Milano
tel. Milano +39-0250317374
tel. CERN +41-227679148

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Received on Mon Aug 03 2020 - 18:30:14 CEST

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