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Soft x-ray He/Li-like feature enabling
(part of theme Special Features)
Objective
Creation of special feature files of ADAS adf31 format of the collection of helium-like /lithium-like satellite line emissivities, parametrised by Te/Ne and non-equilibrium ionisation state. The production will be for ITER relevant elements as required for support of planned and current soft X-ray spectroscopy. These data sets include the full collisional-radiative modelling of doubly excited state populations covering both low and high n-shell spectator electron Provision of access routines to the feature files for extraction and display.
Specific tasks
- The creation step will release for general use and perform selective runs of a code package executing the two step chain of adf04 file creation followed by adf31 feature file creation. The first step assembles the extended form ofadf04 file which includes auto-ionising levels and autoionisation rates from AUTOSTRUCTURE calculation combined with electron impact excitation and ionisation rate coefficients. The second step in the chain is the extended collisional- radiative population code enabled for doubly-excited states.
- Write and release routines for acquisition and interpolation of adf31 feature files in IDL, MATLAB and FORTRAN language. Write and release an IDL display primitive for the special feature.
- Revision. Timing is subject to laboratory responses and indeterminate at this stage.