pub fn uniform_area_dose(psf: &GaussianPsf, weight_per_m2: f64) -> AreaDoseExpand description
The area dose of a uniform exposure of weight_per_m2 primaries per m²
over an area much larger than the PSF’s longest width, with the
forward-only part reported next to the total.
Each normalised Gaussian term integrates to 1 over the plane, so a term
with share c_t/Σc contributes weight_per_m2 · E · c_t/Σc and the
total is weight_per_m2 · E.