The issue was traced back to the MF6 MT5 section in the evaluation. While processing the data, ACER will read the multiplicity of the first section (stored in a TAB1 record) - which is for neutrons. In this particular section, this multiplciity is a relatively long TAB1, longer than NJOY's tab1io subroutine anticipates. This happens quite often and can be resolved by verifying if the entire TAB1 was read and calling moreio as required. In tis particular part of the code, this was not present. Adding the appropriate lines solves the issue and ACER will produce an ACE file.
whaeck
commented
2 years ago
Processing JENDL5 U235 fails on ACER in the standard processing path for continuous energy ACE files using NJOY2016.66.
An example input file: U235.inp.txt
The issue was traced back to the MF6 MT5 section in the evaluation. While processing the data, ACER will read the multiplicity of the first section (stored in a TAB1 record) - which is for neutrons. In this particular section, this multiplciity is a relatively long TAB1, longer than NJOY's tab1io subroutine anticipates. This happens quite often and can be resolved by verifying if the entire TAB1 was read and calling moreio as required. In tis particular part of the code, this was not present. Adding the appropriate lines solves the issue and ACER will produce an ACE file.