Struct TuningSet 

pub struct TuningSet {
    pub name: &'static str,
    pub version: u32,
    pub ions: &'static [&'static str],
    pub energy_range_ev: (f64, f64),
    pub e_s_factors: &'static [(&'static str, f64)],
    pub provenance: &'static str,
}

A named, immutable, versioned set of phenomenological surface-binding energy multipliers (the pilot of the opt-in “experiment-tuned” mode).

This is calibration, not a published model choice: the factors stand for the uncertain planar-barrier convention (E_s = cohesive energy). Each record names its measured source data and fit recipe in provenance (and in docs/data-provenance.md). Rules, all enforced on resolution:

• Only [physics] tuning = "<name>" selects a set; omission and "none" change nothing, and the echoed input is then identical to an untuned one.
• A factor multiplies the resolved E_s of its element (the explicit [physics.energies] / material value if present, else the elemental default), exactly once per layer component, after overrides. The global element table and the collision algorithm are never touched.
• Pilot scope: ion runs on single-element layers only, with a beam species the set was fitted for (TuningSet::ions) and a target element the set lists. Compounds, a [dynamic] target, other beams, unlisted elements and electron input are rejected. A beam energy outside the fitted range or a tilted beam is allowed but warned about (an extrapolation).
• Both the original and the effective energies are reported in summary.json (physics.tuning).

Fields

name: &'static str

Name used in [physics] tuning. Names are never reused: a new version ships under a new name, so a name always selects the same factors.

version: u32

Version of this set; a changed factor is a new version, never an edit.

ions: &'static [&'static str]

Beam species (element symbols) the factors were fitted for.

energy_range_ev: (f64, f64)

Beam energies (eV, inclusive) the fit data covered, at normal incidence.

e_s_factors: &'static [(&'static str, f64)]

E_s multiplier by element symbol; a target element not listed is rejected.

provenance: &'static str

Source measurements and fit procedure, in one line.

Trait Implementations

impl Clone for TuningSet

fn clone(&self) -> TuningSet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TuningSet

impl Debug for TuningSet

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

Formats the value using the given formatter.

impl PartialEq for TuningSet

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TuningSet