minimize_mismatch module

Hold mismatch related functions.

It has its own module as this quantity is pretty specific.

class MinimizeMismatch(name, weight, get_key, get_kwargs, reference, descriptor=None)[source]

Minimize a mismatch factor.

Parameters:

__init__(name, weight, get_key, get_kwargs, reference, descriptor=None)[source]

Set complementary SimulationOutput.get() flags, reference value.

Parameters:

get_key (str) – Must contain ‘twiss’ plus the name of a phase-space, or simply ‘twiss’ and the phase-space is defined in get_kwargs.
get_kwargs (dict[str, Element | str | bool]) – Keyword arguments for the SimulationOutput.get() method. We do not check its validity, but in general you will want to define the keys elt and pos. You should also define the phase_space_name key if it is not defined in the get_key.
reference (SimulationOutput) – The reference simulation output from which the Twiss parameters will be taken.
name (str)
weight (float)
descriptor (str | None, default: None)

Tell nature and position of objective.

Give objective information value.

_twiss_getter(simulation_output)[source]

Get desired value using SimulationOutput.get() method.

evaluate(simulation_output)[source]

Compute residue of this objective.

Parameters:: simulation_output (SimulationOutput | float) – Object containing simulation results of the broken linac.
Returns:: residue – Difference between current evaluation and ideal_value value for self.name, scaled by self.weight.
Return type:: float

_compute_residues(twiss_fix)[source]

Compute the residues.