hyperspy._components.pes_see module

class hyperspy._components.pes_see.SEE(A=1.0, Phi=1.0, B=0.0, module='numexpr', compute_gradients=False, **kwargs)

Bases: Expression

Secondary electron emission component for Photoemission Spectroscopy.

\[
f(x) =
\begin{cases}
    0, & x \leq \Phi\\
    A\cdot{ (x-\Phi) / (x-\Phi+B)^{4}}, & x >  \Phi
\end{cases}
\]

Variable

Parameter

A

A

\Phi

Phi

B

B

Parameters
  • A (float) – Height parameter

  • Phi (float) – Position parameter

  • B (float) – Tail or asymmetry parameter

  • **kwargs – Extra keyword arguments are passed to the Expression component.

grad_A(x)
grad_Phi(x)