Dear Alexander,
One possibility is that the bins with zero statistical uncertainty also
contain zero for the scored quantity.
Should this not be the case, please provide us with a set of
input/output files so we can take a look.
With kind regards,
Cesc
On Tue, Nov 06 2018, at 06:55 +0000, Ševčik Aleksandras wrote:
>
>Dear experts,
>
>I sometimes get the results with zero relative errors which basically means that results are not valid, for the same simulation histories in the same geometry (30 batches for 3E9 events), where the only thing I change is the material. For example: the voxelised phantom with 50+ regions, all assigned as water - no problem at all. Changing several regions to tissue equivalent, let's say bone - sometimes zeroes sometimes not. Changing to another tissue equivalent, again the same. Could someone share with their insight, what can go wrong?
>Thank you very much
>
>Regards
>Alexander
>
--
Francesc Salvat Pujol
CERN-EN/STI
CH-1211 Geneva 23
Switzerland
Tel: +41 22 76 64011
Fax: +41 22 76 69474
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Received on Wed Nov 07 2018 - 13:35:32 CET