Struct TabulatedResolution 

pub struct TabulatedResolution { /* private fields */ }

A tabulated resolution function from Monte Carlo instrument simulation.

Contains reference kernels R(Δt; E_ref) at discrete energies, stored in TOF-offset space (μs). Kernels are interpolated between reference energies and converted from TOF to energy space when applied.

File Format (VENUS/FTS)

FTS BL10 case i00dd folded triang FWHM 350 ns PSR   ← header
-----                                                 ← separator
   5.00000e-004   0.00000e+000                        ← energy block start
-53.458917835671329 2.051764258257523e-04             ← (tof_offset_μs, weight)
...
                                                      ← blank line separates blocks
   1.00000e-003   0.00000e+000                        ← next energy block
...

Implementations

impl TabulatedResolution

pub fn ref_energies(&self) -> &[f64]

Reference energies (eV), sorted ascending.

pub fn kernels(&self) -> &[(Vec<f64>, Vec<f64>)]

For each reference energy: (tof_offsets_μs, weights) pairs. Weights are peak-normalized (max=1.0).

pub fn flight_path_m(&self) -> f64

Flight path length in meters (needed for TOF↔energy conversion).

impl TabulatedResolution

pub fn from_text( text: &str, flight_path_m: f64, ) -> Result<Self, ResolutionParseError>

Parse a VENUS/FTS resolution file.

Arguments

• text — File contents as a string.
• flight_path_m — Flight path length in meters.

pub fn from_file( path: &str, flight_path_m: f64, ) -> Result<Self, ResolutionParseError>

Parse a VENUS/FTS resolution file from disk.

pub fn broaden( &self, energies: &[f64], spectrum: &[f64], ) -> Result<Vec<f64>, ResolutionError>

Apply tabulated resolution broadening to a spectrum.

For each energy point:

1. Find bracketing reference energies and interpolate kernel (log-space)
2. Convert TOF offsets to energy offsets using exact TOF↔energy relation
3. Convolve spectrum with interpolated kernel (trapezoidal integration)

Errors

Returns ResolutionError::LengthMismatch if the arrays differ in length, or ResolutionError::UnsortedEnergies if the energy grid is not sorted in non-descending order.

Trait Implementations

impl Clone for TabulatedResolution

fn clone(&self) -> TabulatedResolution

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TabulatedResolution

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

Formats the value using the given formatter.