Open jlconlin opened 4 years ago
The 'MF=22' is actually an NJOY MFD number for charged particle production matrices. MFD=2x (x equal to 1 to 6) are the production matrices for protons, deuterons, tritons, helions, alpha and the residual nuclide from MF=6. MFD=3x (x also equal to 1 to 6) is the same, but calculated from MF=4 data.
I'll have a look.
Today I learned that in order to process MF=22 and MT=102 (probably some other MT combinations as well), you also need to process MF=6 MT=102 through GROUPR. It is not enough to simply to process MF=6; you have to explicitly call out the MT that you are interested in.
When using the attached input ( H1.njoy.txt) initial ENDF Tape (tape40.txt)
GROUPR will calculates
Inf-309
shown (partially) here:If the line:
near the end of the GROUPR input is removed, then the
Inf-309
isn't calculated.Now I'm not sure where the data for MF=22/MT=102 comes from. It seems that MF=22 is used internally by NJOY. Some insight on that would be helpful.
I've noticed this processing a variety of other ENDF Tapes. All of them have errors when processing MF=2
*
/MT=102 where*
is 2,3,5, or 6. That is, MF=22, 23, 25, or 26 with MF=102 will all produceInf-309
in the same place.