decay_index

fusion_core::stability

Function decay_index 

Source 
pub fn decay_index(
    psi: &Array2<f64>,
    grid: &Grid2D,
    r: f64,
    z: f64,
) -> FusionResult<f64>
Expand description

Calculate the decay index at a given position.

n = -(R/B_Z) ยท dB_Z/dR

Stable if 0 < n < 1.5.