Struct TofIncidentSpectrum 

pub struct TofIncidentSpectrum {
    pub min_tof_us: f64,
    pub max_tof_us: f64,
    pub coefficients: [f64; 12],
}

Facility-neutral Maxwellian-plus-Chebyshev TOF incident spectrum.

The twelve coefficients are P1..P12. With TOF t in milliseconds and x = 2/t - 1, the calibrated intensity is

P1 + P2 t^-5 exp(-P3/t^2) + sum(Pj T_(j-3)(x), j=4..12).

Fields

min_tof_us: f64

Inclusive lower validity bound in microseconds.

max_tof_us: f64

Inclusive upper validity bound in microseconds.

coefficients: [f64; 12]

Coefficients P1..P12 in the documented function order.

Implementations

impl TofIncidentSpectrum

pub fn new( min_tof_us: f64, max_tof_us: f64, coefficients: [f64; 12], ) -> Result<Self, TofIncidentSpectrumError>

Construct and validate a fixed incident-spectrum calibration.

Errors

Returns TofIncidentSpectrumError for an invalid range or non-finite coefficient.

pub fn evaluate( self, tof_us: f64, ) -> Result<TofIncidentSpectrumPoint, TofIncidentSpectrumError>

Evaluate the calibrated intensity and analytical TOF derivative.

The validity interval is inclusive at both ends.

Errors

Returns TofIncidentSpectrumError when TOF lies outside the calibration interval or the fitted function is not positive and finite.

Trait Implementations

impl Clone for TofIncidentSpectrum

fn clone(&self) -> TofIncidentSpectrum

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for TofIncidentSpectrum

impl Debug for TofIncidentSpectrum

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for TofIncidentSpectrum

fn eq(&self, other: &TofIncidentSpectrum) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for TofIncidentSpectrum