JSON Schema Notes

The MOCCA input schema is organized around physics concepts rather than card names:

atom: atomic number, shell charges, binding energies, and mass information
transitions: explicit transition-energy inputs and optional Dirac-energy overrides
capture: initial capture distribution
channels: active monopole, dipole, quadrupole, and octupole channel settings
shell_model: subshell populations, refill behavior, polarization handling, and shell cutoffs
reporting: line filtering and output thresholds
model: low-level physical constants that remain configurable
numerics: numerical control knobs exposed by the standalone implementation

The output artifact mirrors that structure and adds:

provenance fields such as implementation_name, numerical_backend, and coefficient_table_id
the normalized input
the computed result, including line catalog, state summaries, warnings, and Lyman sum