Crate nereids_physics

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§nereids-physics

Cross-section calculation, Doppler/resolution broadening, and transmission forward model for neutron resonance imaging.

auxiliary_grid — Auxiliary energy-grid construction for resolution broadening
channel — Wave number, ρ parameter, statistical weight calculations
coulomb — Coulomb wave functions (Steed’s CF1+CF2) for charged-particle channels
doppler — Free Gas Model Doppler broadening
penetrability — Hard-sphere penetrability, shift, and phase shift functions
reich_moore — Reich-Moore R-matrix cross-section formalism
resolution — Instrument resolution broadening (Gaussian convolution)
rmatrix_limited — R-Matrix Limited (LRF=7) multi-channel formalism
slbw — Breit-Wigner formalisms, single- and multi-level (LRF=1/2)
surrogate — Forward-model surrogates for multi-isotope accelerated fits
transmission — Beer-Lambert transmission forward model
urr — Unresolved Resonance Region (LRU=2) energy-averaged Hauser-Feshbach cross-sections (width-fluctuation correction not yet implemented)

Cross-sections: rml/ (Reich-Moore), mlb/ (SLBW/MLBW), manual Sec. II
Penetrability: rml/mrml07.f (Pgh, Sinsix, Pf)
Coulomb: coulomb/mrml08.f90 (Coulfg, Steed’s CF1+CF2)
Doppler: fgm/ module (Dopfgm), manual Sec. III.B.1
Resolution: convolution/ module, manual Sec. III.C
Transmission: cro/, xxx/ modules, manual Sec. II; transmission experiments Sec. III.E.1

auxiliary_grid: Auxiliary energy grid construction for resolution broadening.
channel: Neutron channel calculations: wave number, ρ parameter, statistical weights.
coulomb: Coulomb wave functions via Steed’s continued-fraction method.
doppler: Doppler broadening via the Free Gas Model (FGM).
penetrability: Hard-sphere penetrability, shift, and phase shift functions.
reich_moore: Multi-formalism cross-section dispatcher.
resolution: Resolution broadening via convolution with instrument resolution function.
rmatrix_limited: R-Matrix Limited (LRF=7) cross-section calculation.
slbw: Single-Level Breit-Wigner (SLBW) cross-section calculation.
surrogate: Forward-model surrogates for multi-isotope accelerated fits.
transmission: Transmission forward model via the Beer-Lambert law.
urr: Unresolved Resonance Region (LRU=2) cross-section calculation.