Enum DivergenceSpec 

pub enum DivergenceSpec {
    Gaussian {
        sigma_deg: f64,
    },
    UniformCone {
        half_angle_deg: f64,
    },
}

[beam.divergence]: the beam’s angular spread about its nominal direction, angles in degrees. Selected by model:

[beam.divergence]
model = "gaussian"      # sigma_deg: standard deviation per plane
sigma_deg = 0.05
# model = "uniform-cone" # half_angle_deg: cone half-angle
# half_angle_deg = 0.1

A Gaussian sigma_deg is the standard deviation of the angular deviation in each of two orthogonal planes through the nominal direction (the polar deviation is then Rayleigh distributed); it is not a cone width. A uniform cone is uniform in solid angle out to half_angle_deg. See crate::ion::crystal::Divergence for the laws. The sampled distribution is conditioned on directions into the target (“inward-conditioned”), and widths are limited to MAX_DIVERGENCE_DEG.

Variants

Gaussian

Gaussian divergence, standard deviation per plane.

Fields

sigma_deg: f64

Standard deviation per plane, degrees, in [0, 10].

UniformCone

Uniform in solid angle within a cone.

Fields

half_angle_deg: f64

Cone half-angle, degrees, in [0, 10].

Trait Implementations

impl Clone for DivergenceSpec

fn clone(&self) -> DivergenceSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DivergenceSpec

impl Debug for DivergenceSpec

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DivergenceSpec

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for DivergenceSpec

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for DivergenceSpec

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DivergenceSpec