jaxrts.models.SchumacherImpulse

class jaxrts.models.SchumacherImpulse(r_k: float | None = None)[source]

Bound-free scattering based on the Schumacher Impulse Approximation [Schumacher et al., 1975]. The implementation considers the first order asymmetric correction to the impulse approximation, as given in the aforementioned paper.

Should yield similar results as SchumacherImpulseColdEdges. However, rather than using absorption edges beof the cold sample, here we use edges of isolated ions in a plasma instead.

Requires a ‘form-factors’ model (defaults to PaulingFormFactors).

Requires an ‘ipd’ model (defaults to Neglect).

r_k is the correction given in [Gregori et al., 2004]. If None, or if a negative value is given, we use the formula given by [Gregori et al., 2004]. Otherwise, it is just the value provided by the user.

Methods

`__init__`([r_k])	r_k is the correction given in [Gregori et al., 2004].
`check`(plasma_state)	Test if the model is applicable to the PlasmaState.
`citation`([style, comment])	Return bibliographic information for the Model used.
`evaluate`(plasma_state, setup, args, *kwargs)	If `sample_points` is not `None`, generate a low-resulution :py:class`~.setup.Setup`.
`evaluate_raw`(plasma_state, setup)
`prepare`(plasma_state, key)	Modify the plasma_state in place.
`sample_grid`(setup)	Define the sample-grid if `sample_points` is not `None`.

Attributes

`allowed_keys`	A list of keywords where this model is adequate for
`cite_keys`	Built-in mutable sequence.
`r_k`	The value for r_k (see [Gregori et al., 2004]).
`sample_points`	The number of points for re-sampeling the model.