Dear Jaakko,

By using the card "set his 1", Serpent print an additional output called _his0.m, in which there are 9 parameters printed in that file in the following order:

HIS_IMP_KEFF (4 columns)

HIS_ANA_KEFF (10 columns)

HIS_COL_KEFF (4 columns)

HIS_MEAN_POP_SIZE (4 columns)

HIS_MEAN_POP_WGT (4 columns)

HIS_TRANSPORT_RUNTIME (7 columns)

HIS_TRANSPORT_CPU_USAGE (4 columns)

HIS_ENTR_SPT (13 coumns)

HIS_ENTR_SWG (13 coumns)

It is obvious that the first column for all parameters correspond to cycle number, but what about the rest of columns in each parameter?

Unfortunately, I did not find any explanition either in the forum nor the new wiki.

What is the difference between HIS_ENTR_SPT and HIS_ENTR_SWG? and which one correspond to fission source (Shannon) entropy?

Thanks...