Hi, What is the maximum number of zones per region ? Best wishes, Marco

Here is my input files – the maximum zones are 130 in region T_block Also what is this symbol (indicated) Thank you ! arie.inp (1.4 MB) arie.flair (4.3 KB) [symbol_fluka]

Hi Marco, Typically, the hard limit on the geometry side concerns the number of regions. There is no strict limit on the number of zones, provided they fit in memory. The symbol you mention is simply a newline character (as can be seen directly in the .inp input file). Allow me to make a few comm…

Hi Daniele, Thanks for the comments! Indeed the strategy was as for 1) I also now exploded+optimised the wedges so that should not be a problem. As for the material….I think this is a new issue in Flair 3.4, I have not encountered this in 2.3 Best wishes, Marco

[image] Marco Hartmann: I think this is a new issue in Flair 3.4, I have not encountered this in 2.3 Not really: this is a well intended measure taken from FLUKA-4.4.0 (released on February 2024) onward, as pointed out in the RELEASE-NOTES: The (already discouraged) use of WHAT(2) in the MA…

I still get a time-out when removing the WHAT(2), I attach my input as well as log and out files…what could be the issue? monet001.out (6.1 MB) monet001.log (471 Bytes) monet.inp (1.4 MB) monet.flair (2.3 MB)

oh I realised there were 2 cards with the same unit bin…maybe that’s why

Not at all. The .log indicates an issue with a COMPOUND card, which in turn is due to your U235 and U238 MATERIAL definitions, where you forgot to indicate the Z value. By the way, these come in addition to U_235 and U_238… Moreover, note that your Eu-151 and Eu-153 MATERIAL cards miss the A value (…

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FLUKA zones maximum

Geometry and Materials

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