PyARC V2.0.0

Added

• Initial OpenMC integration for eigenvalue and volume calculations
• Initial PyGriffin integration
• Returning PyARC results as python objects in user_object.results enabling better integration within WATTS
• Option for PyARC user to spcify .pyarc.rc on their home directory, which will be used by default.
• Extending the number of possible MCC3 IDs from 26 (ABC...Z) to 36 (ABC...Z + 012...9)

Fixed

• MCC3: enabled force_mixture_calc to take a boolean
• DASSH: various bugs were fixed and additional error messages are provided for invalid models
• ORIGEN-S: Fixed potentially concerning bug where irradiation may not be completed after first timestep
• Enabled input access to endf/b-7.1 isotopes (V50, V51, ZN64, etc.) that are only provided in endf/b-7.0 as elements (v, zn)
• Typo in units of DIF3D flux printed out in summary file
• GAMSOR is now incompatible with TWODANT - the two-step approach was already disabled in previous GAMSOR workflow, it is made completely incompatible to clarify it to the user
• Plot_2D utility was skipped if there is nothing to plot to avoid the utility to crash

Changed

• Updated VARPOW execution to match new utility release. PyARC/GAMSOR requires ARC release r3284 or after (issued in September 2022)
• Lumped FP definition lumped_element_text_file was moved outside of MCC3 block to make it compatible with OpenMC
• Executable specification for Scale (used in rebus-to-origen-s script) was changed for consistency - it is now specified under .pyarc.rc