solprop.backends.numpy_ref.populations#
The reference’s scan of the field synthesised on the axis (SEP 19).
Functions
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Scan the field synthesised on the axis: one row, every channel (SEP 19). |
- solprop.backends.numpy_ref.populations.axis_populations(problem, field, z, axis)[source]#
Scan the field synthesised on the axis: one row, every channel (SEP 19).
The reference’s, on the host: the axis is one row per saved plane, against every node of every stage; the native session scans the same row natively. The field is the same as the node fields’ – the same pad scale, taper and fine grid – with both Cartesian components of the mode profiles, as for
peak_intensity; when the state carries the components itself, the profile’s magnitude on the axis is the scalar synthesis. The tables, preionisation and running-integral rule are the node scan’s.- Parameters:
- problemPropagationProblem
The translated problem.
- fieldnumpy.ndarray
One batch member’s state, shape (n_modes, n_pol, n_omega).
- zfloat
Plane position in m.
- axisnumpy.ndarray
The mode set’s synthesis on the axis at z, taper included, rows x and y (
HostDriver._on_axis_synthesis).
- Returns:
- tuple of numpy.ndarray
The final ionised fraction and the largest rate (cycle-averaged on an envelope grid) on the axis, one per channel.