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)