Struct GraphiteBlock 

pub struct GraphiteBlock {
    pub grade: GraphiteGrade,
    pub fluence: f64,
    pub temperature: f64,
    pub initial_density: f64,
}

Graphite moderator block.

Fields

grade: GraphiteGrade

Graphite grade.

fluence: f64

Fast neutron fluence (n/m²).

temperature: f64

Irradiation temperature (K).

initial_density: f64

Initial bulk density (kg/m³).

Implementations

impl GraphiteBlock

pub fn new(grade: GraphiteGrade, temperature: f64) -> Self

Construct a new graphite block.

pub fn thermal_conductivity_unirradiated(&self) -> f64

Unirradiated thermal conductivity (W/m/K).

pub fn thermal_conductivity_irradiated(&self) -> f64

Irradiated thermal conductivity (W/m/K).

Rapid initial degradation followed by recovery at very high fluence. Empirical fit to IAEA-TECDOC-1154 data.

pub fn dimensional_change_axial(&self) -> f64

Dimensional change (ΔL/L₀) in the with-grain direction.

Initially contracts (negative), then expands after turnaround.

pub fn youngs_modulus(&self) -> f64

Young’s modulus (Pa) vs irradiation dose.

Initially increases (~20% at 1 dpa), then decreases at high dose.

pub fn wigner_energy_j_per_kg(&self) -> f64

Wigner energy stored in graphite (J/kg) — relevant for Windscale-type incidents.

Based on Kennedy (1950) empirical correlation.

Trait Implementations

impl Clone for GraphiteBlock

fn clone(&self) -> GraphiteBlock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GraphiteBlock

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

Formats the value using the given formatter.