pub fn broaden_channel(
energies: &[f64],
data: &ResonanceData,
temperature_k: f64,
channel: Channel,
) -> Result<Vec<f64>, DopplerError>pub fn broaden_channel(
energies: &[f64],
data: &ResonanceData,
temperature_k: f64,
channel: Channel,
) -> Result<Vec<f64>, DopplerError>