The NJSX value (the number of spin groups) is now read from the CONT record before the particle pairs in MF32 R-matrix limited uncertainties since SAMMY does not print the NJSX value on the particle pairs. The ENDF format bascially has the NJSX value appear in two places (on a CONT record before the particle pairs and on the particle pairs themselves) and ENDFtk used the second one while SAMMY only prints out the first one.
This "breaks" some interface functions (the R-matrix limited uncertainties from_string() function now requires the number of spin groups while previously it did not).
The NJSX value (the number of spin groups) is now read from the CONT record before the particle pairs in MF32 R-matrix limited uncertainties since SAMMY does not print the NJSX value on the particle pairs. The ENDF format bascially has the NJSX value appear in two places (on a CONT record before the particle pairs and on the particle pairs themselves) and ENDFtk used the second one while SAMMY only prints out the first one.
This "breaks" some interface functions (the R-matrix limited uncertainties from_string() function now requires the number of spin groups while previously it did not).