Vlad Neverov

Update BeamEmissionMultiplet (MSE) model

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This is a draft PR with an update for the `BeamEmissionMultiplet` line shape, which models the MSE under pure linear Stark conditions. This PR is created on top of the...

Add Zeeman splitting and Doppler broadening to StarkBroadenedLine and move line shapes models to a dedicated submodule

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This PR fixes #393 and #396. 1. The line shape models are moved to a separate submodule following the file structure proposed in #396. This change does not affect the...

Split the openadas module into atomic repository and OpenADAS parser

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As discussed in #352 and #364, the user should be able to mix atomic data from different providers in a single local repository. In particular, some data such as the...

Add focal_length property to the Beam

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Currently `Beam` has it's minimum width at Z = 0. However, I came across a problem where a focused beam was injected into the plasma, having a minimum width in...

The `BeamCXLine` model uses the `donor_metastable` attribute of the `BeamCXPEC`. https://github.com/cherab/core/blob/9ae5a3e5493632c0d4cc8deef3aa838bb0085275/cherab/core/model/beam/charge_exchange.pyx#L309-L312 However, the interface class of the `BeamCXPEC` does not have this attribute. https://github.com/cherab/core/blob/9ae5a3e5493632c0d4cc8deef3aa838bb0085275/cherab/core/atomic/rates.pxd#L53-L55 The attribute is added only in...

Doppler broadening of spectral line shapes for non-Maxwellian distribution functions

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Currently, the line shape models calculate Doppler broadening assuming the Maxwellian distribution of the emitting species. Specifically: - projection of the bulk velocity on the observation direction is used to...

Move the line shape models to a submodule

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The `lineshape.pyx` already contains almost 1000 lines of code and the implementation of #393 will bloat it even more. I think it's time to create a separate submodule for line...

Currently, `StarkBroadenedLine` line shape model based on [Lomanowski B.A. et al, 2015, Nucl. Fusion, 55 123028](https://doi.org/10.1088/0029-5515/55/12/123028), only includes a modified Lorentzian for modelling static and dynamic Stark broadening of hydrogen...

Default atomic data distributed with Cherab

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While discussing where to store the Gaunt factor for `Bremsstrahlung` emission model in #352, @Mateasek proposed to create a subpackage `cherab.default_data` to store the default atomic data distributed with Cherab....

Severe performance drops in some scenarios if LAPACK is configured to run in multithreaded mode and MulticoreEngine is used

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Calling any caching or interpolating function that uses `numpy.linalg.solve()` if `render_engine` is set to `MulticoreEngine()` may cause severe drops in performance if numpy is built with OpenBLAS and `OPENBLAS_NUM_THREADS` environment...