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

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

Post by topefo » Fri Apr 10, 2020 7:56 pm

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

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

Post by topefo » Thu Apr 23, 2020 3:31 am

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

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

Post by Jaakko Leppänen » Thu Apr 23, 2020 8:14 am

In the ene card the list starts with the lowest boundary.
- Jaakko

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

Post by topefo » Thu Apr 23, 2020 10:21 pm

Many thanks Jaakko!

Cordially,
Petri

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