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Clarification desired of providing energy group boundaries to the "ene" input card

Posted: Fri Apr 10, 2020 7:56 pm
by topefo
Hi folks,

It would be prudent if more specific information is given in the manual regarding the order of energy group
boundaries that should be provided to the "ene" card. For example, one could write (if I have understood
this correctly now):

E_i : bin boundaries (type 1) , starting with the lower boundary of the group with the lowest energy and ending
with the upper boundary of group 1 with the highest energy.

This would be especially important due to the fact that the pre-defined energy group boundaries are given in an
order opposite to the above one (i.e., with increasing lethargy) as are the boundaries printed out in the MACRO_E
output record of the []_res.m output file.

Cordially,
Petri

Re: Clarification desired of providing energy group boundaries to the "ene" input card

Posted: Thu Apr 23, 2020 3:31 am
by topefo
Hi again,

Just to confirm, how is the group boundaries provided to Serpent2 in the "ene" card
when specifying them manually? Should one start from the fastest to the
lowest energy (normal convention), or otherwise around?
Or does it really matter, i.e., Serpent2 sorts them anyway regardless of ordering?

Best regards,
Petri

Re: Clarification desired of providing energy group boundaries to the "ene" input card

Posted: Thu Apr 23, 2020 8:14 am
by Jaakko Leppänen
In the ene card the list starts with the lowest boundary.

Re: Clarification desired of providing energy group boundaries to the "ene" input card

Posted: Thu Apr 23, 2020 10:21 pm
by topefo
Many thanks Jaakko!

Cordially,
Petri